diff options
Diffstat (limited to 'java/sca/modules/common-java/src')
12 files changed, 0 insertions, 1404 deletions
diff --git a/java/sca/modules/common-java/src/main/java/org/apache/tuscany/sca/common/java/classloader/ClassLoaderDelegate.java b/java/sca/modules/common-java/src/main/java/org/apache/tuscany/sca/common/java/classloader/ClassLoaderDelegate.java deleted file mode 100644 index b4b99ff9e5..0000000000 --- a/java/sca/modules/common-java/src/main/java/org/apache/tuscany/sca/common/java/classloader/ClassLoaderDelegate.java +++ /dev/null @@ -1,97 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - */ - -package org.apache.tuscany.sca.common.java.classloader; - -import java.io.IOException; -import java.net.URL; -import java.util.ArrayList; -import java.util.Collection; -import java.util.Enumeration; -import java.util.List; - -import org.apache.tuscany.sca.common.java.collection.CompoundEnumeration; - -public class ClassLoaderDelegate extends ClassLoader { - private final List<ClassLoader> classLoaders = new ArrayList<ClassLoader>(); - - /** - * @param parent The parent classloaders - * @param loaders A list of classloaders to be used to load classes or resources - */ - public ClassLoaderDelegate(ClassLoader parent, ClassLoader... loaders) { - super(parent); - if (loaders != null) { - for (ClassLoader cl : loaders) { - if (cl != null && cl != parent && !classLoaders.contains(cl)) { - this.classLoaders.add(cl); - } - } - } - } - - /** - * @param parent The parent classloaders - * @param loaders A list of classloaders to be used to load classes or resources - */ - public ClassLoaderDelegate(ClassLoader parent, Collection<ClassLoader> loaders) { - super(parent); - if (loaders != null) { - for (ClassLoader cl : loaders) { - if (cl != null && cl != parent && !classLoaders.contains(cl)) { - this.classLoaders.add(cl); - } - } - } - } - - @Override - protected Class<?> findClass(String className) throws ClassNotFoundException { - for (ClassLoader parent : classLoaders) { - try { - return parent.loadClass(className); - } catch (ClassNotFoundException e) { - continue; - } - } - throw new ClassNotFoundException(className); - } - - @Override - protected URL findResource(String resName) { - for (ClassLoader parent : classLoaders) { - URL url = parent.getResource(resName); - if (url != null) { - return url; - } - } - return null; - } - - @SuppressWarnings("unchecked") - @Override - protected Enumeration<URL> findResources(String resName) throws IOException { - Enumeration<URL>[] enums = new Enumeration[classLoaders.size()]; - int index = 0; - for (ClassLoader parent : classLoaders) { - enums[index++] = parent.getResources(resName); - } - return new CompoundEnumeration<URL>(enums); - } -} diff --git a/java/sca/modules/common-java/src/main/java/org/apache/tuscany/sca/common/java/collection/CollectionMap.java b/java/sca/modules/common-java/src/main/java/org/apache/tuscany/sca/common/java/collection/CollectionMap.java deleted file mode 100644 index cc3fb4676d..0000000000 --- a/java/sca/modules/common-java/src/main/java/org/apache/tuscany/sca/common/java/collection/CollectionMap.java +++ /dev/null @@ -1,62 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - */ - -package org.apache.tuscany.sca.common.java.collection; - -import java.util.ArrayList; -import java.util.Collection; -import java.util.concurrent.ConcurrentHashMap; - -/** - * A Map with Collection values - */ -public class CollectionMap<K, V> extends ConcurrentHashMap<K, Collection<V>> { - private static final long serialVersionUID = -8926174610229029369L; - - public boolean putValue(K key, V value) { - Collection<V> collection = get(key); - if (collection == null) { - collection = createCollection(); - put(key, collection); - } - return collection.add(value); - } - - public boolean putValues(K key, Collection<? extends V> value) { - Collection<V> collection = get(key); - if (collection == null) { - collection = createCollection(); - put(key, collection); - } - return collection.addAll(value); - } - - public boolean removeValue(K key, V value) { - Collection<V> collection = get(key); - if (collection == null) { - return false; - } - return collection.remove(value); - } - - protected Collection<V> createCollection() { - return new ArrayList<V>(); - } - -} diff --git a/java/sca/modules/common-java/src/main/java/org/apache/tuscany/sca/common/java/collection/CompoundEnumeration.java b/java/sca/modules/common-java/src/main/java/org/apache/tuscany/sca/common/java/collection/CompoundEnumeration.java deleted file mode 100644 index dc6a7e0f90..0000000000 --- a/java/sca/modules/common-java/src/main/java/org/apache/tuscany/sca/common/java/collection/CompoundEnumeration.java +++ /dev/null @@ -1,93 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - */ -package org.apache.tuscany.sca.common.java.collection; - -import java.util.Enumeration; -import java.util.NoSuchElementException; - -public class CompoundEnumeration<T> implements Enumeration<T> { - private Enumeration<T>[] enumerations = null; - private int index = 0; - - public CompoundEnumeration(Enumeration<T>... enums) { - enumerations = enums; - } - - public boolean hasMoreElements() { - // if the current enum is null that means this enum is finished - if (currentEnumeration() == null) { - // No next enum - return false; - } - // If the current enum has more elements, lets go - return currentEnumeration().hasMoreElements(); - } - - private Enumeration<T> findNextEnumeration(boolean moveCursor) { - return findNextEnumeration(index, moveCursor); - } - - private Enumeration<T> findNextEnumeration(int cursor, boolean moveCursor) { - // next place in the array - int next = cursor + 1; - // If the cursor is still in the array - if (next < enumerations.length) { - - // If there is something in that place - // AND the enum is not empty - if (enumerations[next] != null && enumerations[next].hasMoreElements()) { - // OK - if (moveCursor) { - index = next; - } - return enumerations[next]; - } - // Try next element - return findNextEnumeration(next, moveCursor); - } - // No more elements available - return null; - } - - public T nextElement() { - // ask for the next element of the current enum. - if (currentEnumeration() != null) { - return currentEnumeration().nextElement(); - } - - // no more elements in this Enum - // We must throw a NoSuchElementException - throw new NoSuchElementException("No more elements"); - } - - private Enumeration<T> currentEnumeration() { - if (enumerations != null) { - if (index < enumerations.length) { - Enumeration<T> e = enumerations[index]; - if (e == null || !e.hasMoreElements()) { - // the current enum is null or empty - // we probably want to switch to the next one - e = findNextEnumeration(true); - } - return e; - } - } - return null; - } -} diff --git a/java/sca/modules/common-java/src/main/java/org/apache/tuscany/sca/common/java/collection/CompoundIterator.java b/java/sca/modules/common-java/src/main/java/org/apache/tuscany/sca/common/java/collection/CompoundIterator.java deleted file mode 100644 index 997ba89881..0000000000 --- a/java/sca/modules/common-java/src/main/java/org/apache/tuscany/sca/common/java/collection/CompoundIterator.java +++ /dev/null @@ -1,113 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - */ -package org.apache.tuscany.sca.common.java.collection; - -import java.util.Collection; -import java.util.Iterator; -import java.util.NoSuchElementException; - -public class CompoundIterator<T> implements Iterator<T> { - private Iterator<T>[] iterators = null; - private int index = 0; - - public CompoundIterator(Iterator<T>... iterators) { - this.iterators = iterators; - } - - @SuppressWarnings("unchecked") - public CompoundIterator(Collection<T>... collections) { - this.iterators = new Iterator[collections.length]; - for (int i = 0; i < collections.length; i++) { - this.iterators[i] = collections[i].iterator(); - } - } - - public boolean hasNext() { - // if the current enum is null that means this enum is finished - if (currentIterator() == null) { - // No next enum - return false; - } - // If the current enum has more elements, lets go - return currentIterator().hasNext(); - } - - private Iterator<T> findNextIterator(boolean moveCursor) { - return findNextIterator(index, moveCursor); - } - - private Iterator<T> findNextIterator(int cursor, boolean moveCursor) { - // next place in the array - int next = cursor + 1; - // If the cursor is still in the array - if (next < iterators.length) { - - // If there is something in that place - // AND the enum is not empty - if (iterators[next] != null && iterators[next].hasNext()) { - // OK - if (moveCursor) { - index = next; - } - return iterators[next]; - } - // Try next element - return findNextIterator(next, moveCursor); - } - // No more elements available - return null; - } - - public T next() { - // ask for the next element of the current enum. - if (currentIterator() != null) { - return currentIterator().next(); - } - - // no more elements in this Enum - // We must throw a NoSuchElementException - throw new NoSuchElementException("No more elements"); - } - - public void remove() { - // ask for the next element of the current enum. - if (currentIterator() != null) { - currentIterator().remove(); - } - - // no more elements in this Enum - // We must throw a NoSuchElementException - throw new NoSuchElementException("No more elements"); - } - - private Iterator<T> currentIterator() { - if (iterators != null) { - if (index < iterators.length) { - Iterator<T> e = iterators[index]; - if (e == null || !e.hasNext()) { - // the current enum is null or empty - // we probably want to switch to the next one - e = findNextIterator(true); - } - return e; - } - } - return null; - } -} diff --git a/java/sca/modules/common-java/src/main/java/org/apache/tuscany/sca/common/java/collection/LRUCache.java b/java/sca/modules/common-java/src/main/java/org/apache/tuscany/sca/common/java/collection/LRUCache.java deleted file mode 100644 index d3f472d463..0000000000 --- a/java/sca/modules/common-java/src/main/java/org/apache/tuscany/sca/common/java/collection/LRUCache.java +++ /dev/null @@ -1,88 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - */ -package org.apache.tuscany.sca.common.java.collection; - -import java.util.LinkedHashMap; -import java.util.Map; - -/** - * A Simple LRU Cache - * - * @version $Revision$ - * @param <K> - * @param <V> - */ - -public class LRUCache<K, V> extends LinkedHashMap<K, V> { - private static final long serialVersionUID = -342098639681884413L; - protected int maxCacheSize = 4096; - - /** - * Default constructor for an LRU Cache The default capacity is 4096 - */ - public LRUCache() { - this(0, 4096, 0.75f, true); - } - - /** - * Constructs a LRUCache with a maximum capacity - * - * @param maximumCacheSize - */ - public LRUCache(int maximumCacheSize) { - this(0, maximumCacheSize, 0.75f, true); - } - - /** - * Constructs an empty <tt>LRUCache</tt> instance with the specified - * initial capacity, maximumCacheSize,load factor and ordering mode. - * - * @param initialCapacity the initial capacity. - * @param maximumCacheSize - * @param loadFactor the load factor. - * @param accessOrder the ordering mode - <tt>true</tt> for access-order, - * <tt>false</tt> for insertion-order. - * @throws IllegalArgumentException if the initial capacity is negative or - * the load factor is non-positive. - */ - - public LRUCache(int initialCapacity, int maximumCacheSize, float loadFactor, boolean accessOrder) { - super(initialCapacity, loadFactor, accessOrder); - this.maxCacheSize = maximumCacheSize; - } - - /** - * @return Returns the maxCacheSize. - */ - public int getMaxCacheSize() { - return maxCacheSize; - } - - /** - * @param maxCacheSize The maxCacheSize to set. - */ - public void setMaxCacheSize(int maxCacheSize) { - this.maxCacheSize = maxCacheSize; - } - - @Override - protected boolean removeEldestEntry(Map.Entry<K, V> eldest) { - return size() > maxCacheSize; - } -} diff --git a/java/sca/modules/common-java/src/main/java/org/apache/tuscany/sca/common/java/io/IOHelper.java b/java/sca/modules/common-java/src/main/java/org/apache/tuscany/sca/common/java/io/IOHelper.java deleted file mode 100644 index 469da29e38..0000000000 --- a/java/sca/modules/common-java/src/main/java/org/apache/tuscany/sca/common/java/io/IOHelper.java +++ /dev/null @@ -1,149 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - */ - -package org.apache.tuscany.sca.common.java.io; - -import java.io.File; -import java.io.FileInputStream; -import java.io.IOException; -import java.io.InputStream; -import java.net.JarURLConnection; -import java.net.MalformedURLException; -import java.net.URI; -import java.net.URISyntaxException; -import java.net.URL; -import java.net.URLConnection; - -/** - * Helper class for I/O operations - */ -public class IOHelper { - - public static InputStream openStream(URL url) throws IOException { - // Handle file:<relative path> which strictly speaking is not a valid file URL - File file = toFile(url); - if (file != null) { - return new FileInputStream(file); - } - URLConnection connection = url.openConnection(); - if (connection instanceof JarURLConnection) { - // See http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=5041014 - connection.setUseCaches(false); - } - InputStream is = connection.getInputStream(); - return is; - } - - public static void close(InputStream is) { - if (is != null) { - try { - is.close(); - } catch (IOException e) { - throw new IllegalStateException(e); - } - } - } - - /** - * Escape the space in URL string - * @param uri - * @return - */ - public static URI createURI(String uri) { - if (uri == null) { - return null; - } - if (uri.indexOf('%') != -1) { - // Avoid double-escaping - return URI.create(uri); - } - int index = uri.indexOf(':'); - String scheme = null; - String ssp = uri; - if (index != -1) { - scheme = uri.substring(0, index); - ssp = uri.substring(index + 1); - } - try { - return new URI(scheme, ssp, null); - } catch (URISyntaxException e) { - throw new IllegalArgumentException(e); - } - } - - public static URI toURI(URL url) { - if (url == null) { - return null; - } - return createURI(url.toString()); - } - - public static URL normalize(URL url) { - // Make sure the trailing / is added to the file directory URL so that - // URLClassLoader can load classes from that - try { - File file = toFile(url); - if (file != null) { - return file.toURI().toURL(); - } else { - return toURI(url).toURL(); - } - } catch (MalformedURLException e) { - throw new IllegalArgumentException(e); - } - } - - /** - * Returns the File object representing the given URL. - * - * @param url - * @return - */ - public static File toFile(URL url) { - if (url == null || !url.getProtocol().equals("file")) { - return null; - } else { - String filename = url.getFile().replace('/', File.separatorChar); - int pos = 0; - while ((pos = filename.indexOf('%', pos)) >= 0) { - if (pos + 2 < filename.length()) { - String hexStr = filename.substring(pos + 1, pos + 3); - char ch = (char)Integer.parseInt(hexStr, 16); - filename = filename.substring(0, pos) + ch + filename.substring(pos + 3); - } - } - return new File(filename); - } - } - - /** - * Returns the location of the classpath entry, JAR, WAR etc. containing the given class. - * - * @param clazz - * @return - */ - public static URL codeLocation(Class<?> clazz) { - URL url = clazz.getProtectionDomain().getCodeSource().getLocation(); - if (url == null) { - url = clazz.getResource("/" + clazz.getName().replace('.', '/') + ".class"); - } - return url; - } - -} diff --git a/java/sca/modules/common-java/src/main/java/org/apache/tuscany/sca/common/java/reflection/JavaIntrospectionHelper.java b/java/sca/modules/common-java/src/main/java/org/apache/tuscany/sca/common/java/reflection/JavaIntrospectionHelper.java deleted file mode 100644 index ae4f01c032..0000000000 --- a/java/sca/modules/common-java/src/main/java/org/apache/tuscany/sca/common/java/reflection/JavaIntrospectionHelper.java +++ /dev/null @@ -1,586 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - */ -package org.apache.tuscany.sca.common.java.reflection; - -import java.beans.Introspector; -import java.lang.reflect.Constructor; -import java.lang.reflect.Field; -import java.lang.reflect.GenericArrayType; -import java.lang.reflect.Method; -import java.lang.reflect.Modifier; -import java.lang.reflect.ParameterizedType; -import java.lang.reflect.Type; -import java.lang.reflect.TypeVariable; -import java.lang.reflect.WildcardType; -import java.security.AccessController; -import java.security.PrivilegedAction; -import java.util.ArrayList; -import java.util.Collection; -import java.util.HashMap; -import java.util.HashSet; -import java.util.List; -import java.util.Map; -import java.util.Set; -import java.util.logging.Logger; - -import org.apache.tuscany.sca.core.ExtensionPointRegistry; -import org.apache.tuscany.sca.core.UtilityExtensionPoint; -import org.oasisopen.sca.ServiceReference; - -/** - * Implements various reflection-related operations - * - * @version $Rev$ $Date$ - */ -public final class JavaIntrospectionHelper { - private static final Logger logger = Logger.getLogger(JavaIntrospectionHelper.class.getName()); - private static final Class<?>[] EMPTY_CLASS_ARRY = new Class[0]; - - private ExtensionPointRegistry registry; - - public JavaIntrospectionHelper(ExtensionPointRegistry registry) { - this.registry = registry; - } - - public static JavaIntrospectionHelper getInstance(ExtensionPointRegistry registry) { - UtilityExtensionPoint utilities = registry.getExtensionPoint(UtilityExtensionPoint.class); - return utilities.getUtility(JavaIntrospectionHelper.class); - } - - private static boolean matches(int modifiers, int include, int exclude) { - if (include != -1) { - if ((modifiers & include) == 0) { - return false; - } - } - if (exclude != -1) { - if ((modifiers & exclude) != 0) { - return false; - } - } - return true; - } - - /** - * Recursively evaluates the type hierarchy to return all fields that are - * public or protected - * @param clazz The java class - * @param fields The set that collects all fields - * @param include The modifiers to be included - * @param exclude The modifiers to be excluded - * @return The set that collects all matched fields - */ - private static Set<Field> getAllFields(Class<?> clazz, Set<Field> fields, int include, int exclude) { - if (clazz == null || clazz.isArray() || Object.class.equals(clazz)) { - return fields; - } - fields = getAllFields(clazz.getSuperclass(), fields, include, exclude); - Field[] declaredFields = clazz.getDeclaredFields(); - for (final Field field : declaredFields) { - int modifiers = field.getModifiers(); - if (matches(modifiers, include, exclude)) { - // Allow privileged access to set accessibility. Requires ReflectPermission - // in security policy. - AccessController.doPrivileged(new PrivilegedAction<Object>() { - public Object run() { - field.setAccessible(true); // ignore Java accessibility - return null; - } - }); - fields.add(field); - } - } - return fields; - } - - /** - * @param cls - * @return - */ - public Set<Field> getAllNonStaticOrFinalFields(Class<?> cls) { - Set<Field> fields = new HashSet<Field>(); - return getAllFields(cls, fields, -1, Modifier.STATIC | Modifier.FINAL); - } - - /** - * @param cls - * @return - */ - public Set<Method> getAllNonStaticMethods(Class<?> cls) { - Set<Method> methods = new HashSet<Method>(); - return getAllUniqueMethods(cls, methods, -1, Modifier.STATIC); - } - - /** - * Recursively evaluates the type hierarchy to return all unique methods - */ - private static Set<Method> getAllUniqueMethods(Class<?> pClass, Set<Method> methods, int include, int exclude) { - if (pClass == null || pClass.isArray() || Object.class.equals(pClass)) { - return methods; - } - // we first evaluate methods of the subclass and then move to the parent - Method[] declaredMethods = pClass.getDeclaredMethods(); - for (final Method declaredMethod : declaredMethods) { - int modifiers = declaredMethod.getModifiers(); - if (!matches(modifiers, include, exclude)) { - continue; - } - if (methods.size() == 0) { - methods.add(declaredMethod); - } else { - List<Method> temp = new ArrayList<Method>(); - boolean matched = false; - for (Method method : methods) { - // only add if not already in the set from a superclass (i.e. - // the method is not overridden) - if (exactMethodMatch(declaredMethod, method)) { - matched = true; - break; - } - } - if (!matched) { - // Allow privileged access to set accessibility. Requires ReflectPermission - // in security policy. - AccessController.doPrivileged(new PrivilegedAction<Object>() { - public Object run() { - declaredMethod.setAccessible(true); - return null; - } - }); - temp.add(declaredMethod); - } - methods.addAll(temp); - temp.clear(); - } - } - // evaluate class hierarchy - this is done last to track inherited - // methods - methods = getAllUniqueMethods(pClass.getSuperclass(), methods, include, exclude); - return methods; - } - - /** - * Finds the closest matching field with the given name, that is, a field of - * the exact specified type or, alternately, of a supertype. - * - * @param name the name of the field - * @param type the field type - * @param fields the collection of fields to search - * @return the matching field or null if not found - */ - public static Field findClosestMatchingField(String name, Class type, Set<Field> fields) { - Field candidate = null; - for (Field field : fields) { - if (field.getName().equals(name)) { - if (field.getType().equals(type)) { - return field; // exact match - } else if (field.getType().isAssignableFrom(type) || (field.getType().isPrimitive() && primitiveAssignable(field - .getType(), - type))) { - // We could have the situation where a field parameter is a - // primitive and the demarshalled value is - // an object counterpart (e.g. Integer and int) - // @spec issue - // either an interface or super class, so keep a reference - // until - // we know there are no closer types - candidate = field; - } - } - } - if (candidate != null) { - return candidate; - } else { - return null; - } - } - - /** - * Finds the closest matching method with the given name, that is, a method - * taking the exact parameter types or, alternately, parameter supertypes. - * - * @param name the name of the method - * @param types the method parameter types - * @param methods the collection of methods to search - * @return the matching method or null if not found - */ - public static Method findClosestMatchingMethod(String name, Class[] types, Set<Method> methods) { - if (types == null) { - types = EMPTY_CLASS_ARRY; - } - Method candidate = null; - for (Method method : methods) { - if (method.getName().equals(name) && method.getParameterTypes().length == types.length) { - Class<?>[] params = method.getParameterTypes(); - boolean disqualify = false; - boolean exactMatch = true; - for (int i = 0; i < params.length; i++) { - if (!params[i].equals(types[i]) && !params[i].isAssignableFrom(types[i])) { - // no match - disqualify = true; - exactMatch = false; - break; - } else if (!params[i].equals(types[i]) && params[i].isAssignableFrom(types[i])) { - // not exact match - exactMatch = false; - } - } - if (disqualify) { - continue; - } else if (exactMatch) { - return method; - } else { - candidate = method; - } - } - } - if (candidate != null) { - return candidate; - } else { - return null; - } - } - - /** - * Determines if two methods "match" - that is, they have the same method - * names and exact parameter types (one is not a supertype of the other) - */ - public static boolean exactMethodMatch(Method method1, Method method2) { - if (!method1.getName().equals(method2.getName())) { - return false; - } - Class<?>[] types1 = method1.getParameterTypes(); - Class<?>[] types2 = method2.getParameterTypes(); - if (types1.length != types2.length) { - return false; - } - boolean matched = true; - for (int i = 0; i < types1.length; i++) { - if (types1[i] != types2[i]) { - matched = false; - break; - } - } - return matched; - } - - public static <T> Constructor<T> getDefaultConstructor(Class<T> clazz) throws NoSuchMethodException { - return clazz.getConstructor(); - } - - /** - * Returns the simple name of a class - i.e. the class name devoid of its - * package qualifier - * - * @param implClass the implementation class - */ - public static String getBaseName(Class<?> implClass) { - return implClass.getSimpleName(); - } - - public static boolean isImmutable(Class<?> clazz) { - return String.class == clazz || clazz.isPrimitive() - || Number.class.isAssignableFrom(clazz) - || Boolean.class.isAssignableFrom(clazz) - || Character.class.isAssignableFrom(clazz) - || Byte.class.isAssignableFrom(clazz); - } - - /** - * Takes a property name and converts it to a getter method name according - * to JavaBean conventions. For example, property - * <code>foo<code> is returned as <code>getFoo</code> - */ - public static String toGetter(String name) { - return "get" + name.toUpperCase().substring(0, 1) + name.substring(1); - } - - /** - * Takes a setter or getter method name and converts it to a property name - * according to JavaBean conventions. For example, <code>setFoo(var)</code> - * is returned as property <code>foo<code> - */ - public static String toPropertyName(Method method) { - if (isGetter(method) || isSetter(method)) { - String name = method.getName(); - if (name.startsWith("get") || name.startsWith("set")) { - return Introspector.decapitalize(name.substring(3)); - } else { - // Starts with is - return Introspector.decapitalize(name.substring(2)); - } - } else { - throw new IllegalArgumentException("Method is not a setter or getter: " + method); - } - } - - public static Class<?> getErasure(Type type) { - if (type instanceof Class) { - return (Class<?>)type; - } else if (type instanceof GenericArrayType) { - // FIXME: How to deal with the []? - GenericArrayType arrayType = (GenericArrayType)type; - return getErasure(arrayType.getGenericComponentType()); - } else if (type instanceof ParameterizedType) { - ParameterizedType pType = (ParameterizedType)type; - return getErasure(pType.getRawType()); - } else if (type instanceof WildcardType) { - WildcardType wType = (WildcardType)type; - Type[] types = wType.getUpperBounds(); - return getErasure(types[0]); - } else if (type instanceof TypeVariable) { - TypeVariable<?> var = (TypeVariable<?>)type; - Type[] types = var.getBounds(); - return getErasure(types[0]); - } - return null; - } - - public static Class<?> getBaseType(Class<?> cls, Type genericType) { - if (cls.isArray()) { - return cls.getComponentType(); - } else if (Collection.class.isAssignableFrom(cls)) { - if (genericType instanceof ParameterizedType) { - // Collection<BaseType> - ParameterizedType parameterizedType = (ParameterizedType)genericType; - Type baseType = parameterizedType.getActualTypeArguments()[0]; - if (baseType instanceof GenericArrayType) { - // Base is array - return cls; - } else { - return getErasure(baseType); - } - } else { - return cls; - } - } else { - return cls; - } - } - - public static Type getParameterType(Type type) { - if (type instanceof ParameterizedType) { - // Collection<BaseType> - ParameterizedType parameterizedType = (ParameterizedType)type; - Type baseType = parameterizedType.getActualTypeArguments()[0]; - return baseType; - } else { - return Object.class; - } - } - - public static Class<?> getBusinessInterface(Class<?> cls, Type callableReferenceType) { - if (ServiceReference.class.isAssignableFrom(cls) && callableReferenceType instanceof ParameterizedType) { - // Collection<BaseType> - ParameterizedType parameterizedType = (ParameterizedType)callableReferenceType; - Type baseType = parameterizedType.getActualTypeArguments()[0]; - if (baseType instanceof GenericArrayType) { - // Base is array - return cls; - } else { - return getErasure(baseType); - } - } - return Object.class; - } - - /** - * Takes a property name and converts it to a setter method name according - * to JavaBean conventions. For example, the property - * <code>foo<code> is returned as <code>setFoo(var)</code> - */ - public static String toSetter(String name) { - return "set" + name.toUpperCase().substring(0, 1) + name.substring(1); - } - - /** - * Compares a two types, assuming one is a primitive, to determine if the - * other is its object counterpart - */ - private static boolean primitiveAssignable(Class<?> memberType, Class<?> param) { - if (memberType == Integer.class) { - return param == Integer.TYPE; - } else if (memberType == Double.class) { - return param == Double.TYPE; - } else if (memberType == Float.class) { - return param == Float.TYPE; - } else if (memberType == Short.class) { - return param == Short.TYPE; - } else if (memberType == Character.class) { - return param == Character.TYPE; - } else if (memberType == Boolean.class) { - return param == Boolean.TYPE; - } else if (memberType == Byte.class) { - return param == Byte.TYPE; - } else if (param == Integer.class) { - return memberType == Integer.TYPE; - } else if (param == Double.class) { - return memberType == Double.TYPE; - } else if (param == Float.class) { - return memberType == Float.TYPE; - } else if (param == Short.class) { - return memberType == Short.TYPE; - } else if (param == Character.class) { - return memberType == Character.TYPE; - } else if (param == Boolean.class) { - return memberType == Boolean.TYPE; - } else if (param == Byte.class) { - return memberType == Byte.TYPE; - } else { - return false; - } - } - - /** - * Returns the generic types represented in the given type. Usage as - * follows: <code> - * JavaIntrospectionHelper.getGenerics(field.getGenericType()); - * <p/> - * JavaIntrospectionHelper.getGenerics(m.getGenericParameterTypes()[0];); </code> - * - * @return the generic types in order of declaration or an empty array if - * the type is not genericized - */ - public static List<? extends Type> getGenerics(Type genericType) { - List<Type> classes = new ArrayList<Type>(); - if (genericType instanceof ParameterizedType) { - ParameterizedType ptype = (ParameterizedType)genericType; - // get the type arguments - Type[] targs = ptype.getActualTypeArguments(); - for (Type targ : targs) { - classes.add(targ); - } - } - return classes; - } - - /** - * Returns the generic type specified by the class at the given position as - * in: <p/> <code> public class Foo<Bar,Baz>{ //.. } - * <p/> - * JavaIntrospectionHelper.introspectGeneric(Foo.class,1); <code> - * <p/> - * will return Baz. - */ - public static Class introspectGeneric(Class<?> clazz, int pos) { - assert clazz != null : "No class specified"; - Type type = clazz.getGenericSuperclass(); - if (type instanceof ParameterizedType) { - Type[] args = ((ParameterizedType)type).getActualTypeArguments(); - if (args.length <= pos) { - throw new IllegalArgumentException("Invalid index value for generic class " + clazz.getName()); - } - return (Class)((ParameterizedType)type).getActualTypeArguments()[pos]; - } else { - Type[] interfaces = clazz.getGenericInterfaces(); - for (Type itype : interfaces) { - if (!(itype instanceof ParameterizedType)) { - continue; - } - ParameterizedType interfaceType = (ParameterizedType)itype; - return (Class)interfaceType.getActualTypeArguments()[0]; - } - } - return null; - } - - /** - * Returns the set of interfaces implemented by the given class and its - * ancestors or a blank set if none - */ - public Set<Class<?>> getAllInterfaces(Class<?> clazz) { - Set<Class<?>> implemented = new HashSet<Class<?>>(); - getAllInterfaces(clazz, implemented); - return implemented; - } - - private static void getAllInterfaces(Class<?> clazz, Set<Class<?>> implemented) { - Class<?>[] interfaces = clazz.getInterfaces(); - for (Class<?> interfaze : interfaces) { - implemented.add(interfaze); - } - Class<?> superClass = clazz.getSuperclass(); - // Object has no superclass so check for null - if (superClass != null && !superClass.equals(Object.class)) { - getAllInterfaces(superClass, implemented); - } - } - - /** - * Test if a method follows the JavaBeans setter pattern - * @param method - * @return - */ - public static boolean isSetter(Method method) { - return (void.class == method.getReturnType() && method.getParameterTypes().length == 1 - && method.getName().startsWith("set") && method.getName().length() > 3); - } - - /** - * Test if a method follows the JavaBeans getter pattern - * @param method - * @return - */ - public static boolean isGetter(Method method) { - if (method.getParameterTypes().length == 0) { - return false; - } - Class<?> returnType = method.getReturnType(); - if (returnType == void.class || returnType == Void.class) { - return false; - } - String name = method.getName(); - if (returnType == boolean.class) - if (name.length() > 2 && name.startsWith("is")) { - return true; - } - return name.length() > 3 && name.startsWith("get"); - } - - private final static Map<Class<?>, String> signatures = new HashMap<Class<?>, String>(); - static { - signatures.put(boolean.class, "Z"); - signatures.put(byte.class, "B"); - signatures.put(char.class, "C"); - signatures.put(short.class, "S"); - signatures.put(int.class, "I"); - signatures.put(long.class, "J"); - signatures.put(float.class, "F"); - signatures.put(double.class, "D"); - }; - - public static String getSignature(Class<?> cls) { - if (cls.isPrimitive()) { - return signatures.get(cls); - } - if (cls.isArray()) { - return "[" + getSignature(cls.getComponentType()); - } - return "L" + cls.getName().replace('.', '/') + ";"; - } - - public static Class<?> getArrayType(Class<?> componentType, int dims) throws ClassNotFoundException { - StringBuffer buf = new StringBuffer(); - for (int i = 0; i < dims; i++) { - buf.append('['); - } - buf.append(getSignature(componentType)); - return Class.forName(buf.toString(), false, componentType.getClassLoader()); - } -} diff --git a/java/sca/modules/common-java/src/test/java/org/apache/tuscany/sca/common/java/reflection/JavaIntrospectionHelperTestCase.java b/java/sca/modules/common-java/src/test/java/org/apache/tuscany/sca/common/java/reflection/JavaIntrospectionHelperTestCase.java deleted file mode 100644 index 11931a354f..0000000000 --- a/java/sca/modules/common-java/src/test/java/org/apache/tuscany/sca/common/java/reflection/JavaIntrospectionHelperTestCase.java +++ /dev/null @@ -1,71 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - */ - -package org.apache.tuscany.sca.common.java.reflection; - -import java.lang.reflect.Field; -import java.lang.reflect.Method; -import java.util.Set; - -import org.apache.tuscany.sca.core.DefaultExtensionPointRegistry; -import org.junit.AfterClass; -import org.junit.BeforeClass; -import org.junit.Test; - -/** - * - */ -public class JavaIntrospectionHelperTestCase { - private static JavaIntrospectionHelper helper; - - /** - * @throws java.lang.Exception - */ - @BeforeClass - public static void setUpBeforeClass() throws Exception { - helper = JavaIntrospectionHelper.getInstance(new DefaultExtensionPointRegistry()); - } - - @Test - public void testGetMethods() { - Set<Method> methods = helper.getAllNonStaticMethods(SubTestImpl.class); - System.out.println(methods); - } - - @Test - public void testGetFields() { - Set<Field> fields = helper.getAllNonStaticOrFinalFields(SubTestImpl.class); - System.out.println(fields); - } - - @Test - public void testGetAllInterfaces() { - Set<Class<?>> interfaces = helper.getAllInterfaces(SubTestImpl.class); - System.out.println(interfaces); - } - - /** - * @throws java.lang.Exception - */ - @AfterClass - public static void tearDownAfterClass() throws Exception { - helper = null; - } - -} diff --git a/java/sca/modules/common-java/src/test/java/org/apache/tuscany/sca/common/java/reflection/SubTestImpl.java b/java/sca/modules/common-java/src/test/java/org/apache/tuscany/sca/common/java/reflection/SubTestImpl.java deleted file mode 100644 index 77595f3281..0000000000 --- a/java/sca/modules/common-java/src/test/java/org/apache/tuscany/sca/common/java/reflection/SubTestImpl.java +++ /dev/null @@ -1,45 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - */ - -package org.apache.tuscany.sca.common.java.reflection; - -/** - * - */ -public class SubTestImpl extends TestImpl implements Test2 { - private final int age = 0; - public String message; - protected static Test1 test1; - - public void test2(int i) { - System.out.println(age + i); - } - - @Override - public String test(String str) { - return hello(str); - } - - private String hello(String str) { - return message + ":" + str; - } - - public static void test4() { - } -} diff --git a/java/sca/modules/common-java/src/test/java/org/apache/tuscany/sca/common/java/reflection/Test1.java b/java/sca/modules/common-java/src/test/java/org/apache/tuscany/sca/common/java/reflection/Test1.java deleted file mode 100644 index c7a25d95c2..0000000000 --- a/java/sca/modules/common-java/src/test/java/org/apache/tuscany/sca/common/java/reflection/Test1.java +++ /dev/null @@ -1,28 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - */ - -package org.apache.tuscany.sca.common.java.reflection; - -/** - * - */ -public interface Test1 { - String test(String str); - void test1(int i); -} diff --git a/java/sca/modules/common-java/src/test/java/org/apache/tuscany/sca/common/java/reflection/Test2.java b/java/sca/modules/common-java/src/test/java/org/apache/tuscany/sca/common/java/reflection/Test2.java deleted file mode 100644 index 2b751af3eb..0000000000 --- a/java/sca/modules/common-java/src/test/java/org/apache/tuscany/sca/common/java/reflection/Test2.java +++ /dev/null @@ -1,28 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - */ - -package org.apache.tuscany.sca.common.java.reflection; - -/** - * - */ -public interface Test2 { - String test(String str); - void test2(int i); -} diff --git a/java/sca/modules/common-java/src/test/java/org/apache/tuscany/sca/common/java/reflection/TestImpl.java b/java/sca/modules/common-java/src/test/java/org/apache/tuscany/sca/common/java/reflection/TestImpl.java deleted file mode 100644 index 1bb7432b63..0000000000 --- a/java/sca/modules/common-java/src/test/java/org/apache/tuscany/sca/common/java/reflection/TestImpl.java +++ /dev/null @@ -1,44 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - */ - -package org.apache.tuscany.sca.common.java.reflection; - -/** - * - */ -public class TestImpl implements Test1 { - private String message; - protected Test2 test2; - - public void test1(int i) { - } - - protected void setTest2(Test2 test2) { - this.test2 = test2; - } - - public String test(String str) { - return hello(str); - } - - private String hello(String str) { - return message + ":" + str; - } - -} |