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author | lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68> | 2009-11-11 23:08:02 +0000 |
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committer | lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68> | 2009-11-11 23:08:02 +0000 |
commit | e0ff67c0b32813ea48734c770a5ffc1952644e29 (patch) | |
tree | f36cc42aee12d0f41c8ddd1f20b4e67364283352 /sca-java-1.x/branches/sca-java-1.3.1/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/BeanXMLStreamReaderImpl.java | |
parent | 89d72264d0af4c65c9bf0b7a6f823f13d69162aa (diff) |
Moving 1.x branches
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@835128 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'sca-java-1.x/branches/sca-java-1.3.1/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/BeanXMLStreamReaderImpl.java')
-rw-r--r-- | sca-java-1.x/branches/sca-java-1.3.1/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/BeanXMLStreamReaderImpl.java | 320 |
1 files changed, 320 insertions, 0 deletions
diff --git a/sca-java-1.x/branches/sca-java-1.3.1/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/BeanXMLStreamReaderImpl.java b/sca-java-1.x/branches/sca-java-1.3.1/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/BeanXMLStreamReaderImpl.java new file mode 100644 index 0000000000..0fde2ee9a5 --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.3.1/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/BeanXMLStreamReaderImpl.java @@ -0,0 +1,320 @@ +/* + * 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.databinding.jaxb; + +import java.lang.reflect.Array; +import java.lang.reflect.ParameterizedType; +import java.lang.reflect.Type; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.Collection; +import java.util.Collections; +import java.util.Comparator; +import java.util.HashMap; +import java.util.Iterator; +import java.util.List; +import java.util.Map; +import java.util.Map.Entry; + +import javax.xml.namespace.QName; + +import org.apache.tuscany.sca.databinding.impl.SimpleTypeMapperImpl; +import org.apache.tuscany.sca.databinding.xml.SimpleXmlNodeImpl; +import org.apache.tuscany.sca.databinding.xml.XmlNode; +import org.apache.tuscany.sca.databinding.xml.XmlTreeStreamReaderImpl; +import org.apache.tuscany.sca.interfacedef.util.TypeInfo; +import org.jvnet.jaxb.reflection.model.annotation.RuntimeInlineAnnotationReader; +import org.jvnet.jaxb.reflection.model.core.Ref; +import org.jvnet.jaxb.reflection.model.impl.RuntimeModelBuilder; +import org.jvnet.jaxb.reflection.model.runtime.RuntimeClassInfo; +import org.jvnet.jaxb.reflection.model.runtime.RuntimePropertyInfo; +import org.jvnet.jaxb.reflection.model.runtime.RuntimeTypeInfoSet; +import org.jvnet.jaxb.reflection.runtime.IllegalAnnotationsException; +import org.jvnet.jaxb.reflection.runtime.JAXBContextImpl; + + + +/** + * @version $Rev$ $Date$ + */ +public class BeanXMLStreamReaderImpl extends XmlTreeStreamReaderImpl { + private static final Comparator<Accessor> COMPARATOR = new Comparator<Accessor>() { + public int compare(Accessor o1, Accessor o2) { + return o1.getName().compareTo(o2.getName()); + } + }; + + private static final String XSI_PREFIX = "xsi"; + private static final String XSI_NS = "http://www.w3.org/2001/XMLSchema-instance"; + + private static XmlNode getXSIType(QName realType) { + QName xsiType = new QName(XSI_NS, "type", XSI_PREFIX); + String prefix = realType.getPrefix(); + String typeName = realType.getLocalPart(); + if (prefix != null && !prefix.equals("")) { + typeName = prefix + ":" + realType.getLocalPart(); + } + return new SimpleXmlNodeImpl(xsiType, XmlNode.Type.ATTRIBUTE); + } + + /** + * Represent a Map.Entry XML node + * @version $Rev$ $Date$ + */ + public static class MapEntryXmlNodeImpl extends SimpleXmlNodeImpl implements XmlNode { + private Map.Entry entry; + + public MapEntryXmlNodeImpl(Entry entry) { + super(new QName("", "entry"), entry); + this.entry = entry; + } + + public Iterator<XmlNode> children() { + List<XmlNode> nodes = new ArrayList<XmlNode>(); + XmlNode key = new BeanXmlNodeImpl(new QName("", "key"), entry.getKey()); + XmlNode value = new BeanXmlNodeImpl(new QName("", "value"), entry.getValue()); + nodes.add(key); + nodes.add(value); + return nodes.iterator(); + } + } + + public static class BeanXmlNodeImpl extends SimpleXmlNodeImpl implements XmlNode { + private static final Object[] NULL = null; + private static final SimpleTypeMapperImpl MAPPER = new SimpleTypeMapperImpl(); + + public BeanXmlNodeImpl(Object bean) { + super(getName(bean == null ? null : bean.getClass()), bean); + } + + public BeanXmlNodeImpl(QName name, Object bean) { + super(name, bean); + } + + private static boolean isSimpleType(Class<?> javaType) { + return SimpleTypeMapperImpl.getXMLType(javaType) != null; + } + + private static String getStringValue(Object o) { + if (o == null) { + return null; + } + TypeInfo info = SimpleTypeMapperImpl.getXMLType(o.getClass()); + if (info != null) { + return MAPPER.toXMLLiteral(info.getQName(), o, null); + } else { + return String.valueOf(o); + } + } + + public Iterator<XmlNode> children() { + if (name == null) { + return null; + } + if (value == null) { + return super.children(); + } + if (isSimpleType(value.getClass())) { + XmlNode textNode = new BeanXmlNodeImpl(null, value); + return Arrays.asList(textNode).iterator(); + } + if (Map.class.isAssignableFrom(value.getClass())) { + List<XmlNode> entries = new ArrayList<XmlNode>(); + Map map = (Map)value; + if (map != null) { + for (Object e : map.entrySet()) { + Map.Entry entry = (Map.Entry)e; + entries.add(new MapEntryXmlNodeImpl(entry)); + } + } + return entries.iterator(); + } + try { + Map<String, Accessor> accessorMap = getAccessors(value); + List<Accessor> accessorList = new ArrayList<Accessor>(accessorMap.values()); + Collections.sort(accessorList, COMPARATOR); + + List<XmlNode> props = new ArrayList<XmlNode>(); + for (Accessor accessor : accessorList) { + Class<?> pType = accessor.getType(); + + QName pName = new QName(name.getNamespaceURI(), accessor.getName()); + Object pValue = accessor.getValue(); + if (pType.isArray()) { + if (pValue != null) { + int i1 = Array.getLength(pValue); + for (int j = 0; j < i1; j++) { + Object o = Array.get(pValue, j); + props.add(new BeanXmlNodeImpl(pName, o)); + } + } else { + // TODO: How to handle null? + } + } else if (Collection.class.isAssignableFrom(pType)) { + Collection objList = (Collection)pValue; + if (objList != null && objList.size() > 0) { + for (Iterator j = objList.iterator(); j.hasNext();) { + Object o = j.next(); + props.add(new BeanXmlNodeImpl(pName, o)); + } + + } else { + // How to handle null + } + } else { + props.add(new BeanXmlNodeImpl(pName, pValue)); + } + } + return props.iterator(); + } catch (Exception e) { + throw new IllegalArgumentException(e); + } + } + + public QName getName() { + return name; + } + + public String getValue() { + return getStringValue(value); + } + + private static String getPackageName(Class<?> cls) { + String name = cls.getName(); + int index = name.lastIndexOf('.'); + return index == -1 ? "" : name.substring(0, index); + } + + public static QName getName(Class<?> cls) { + if (cls == null) { + return null; + } + + String packageName = getPackageName(cls); + + if ("".equals(packageName)) { + return new QName("", cls.getSimpleName()); + } + StringBuffer ns = new StringBuffer("http://"); + String[] names = packageName.split("\\."); + for (int i = names.length - 1; i >= 0; i--) { + ns.append(names[i]); + if (i != 0) { + ns.append('.'); + } + } + ns.append('/'); + return new QName(ns.toString(), cls.getSimpleName()); + } + } + + public BeanXMLStreamReaderImpl(QName name, Object bean) { + super(getXmlNode(name, bean)); + } + + private static BeanXmlNodeImpl getXmlNode(QName name, Object bean) { + BeanXmlNodeImpl root = null; + if (name != null) { + root = new BeanXmlNodeImpl(name, bean); + } else { + root = new BeanXmlNodeImpl(bean); + } + return root; + } + + public static interface Accessor { + String getName(); + + Class<?> getType(); + + Object getValue() throws Exception; + + void setValue(Object value) throws Exception; + } + + private static RuntimeTypeInfoSet create(Class... classes) throws Exception { + IllegalAnnotationsException.Builder errorListener = new IllegalAnnotationsException.Builder(); + RuntimeInlineAnnotationReader reader = new RuntimeInlineAnnotationReader(); + JAXBContextImpl context = + new JAXBContextImpl(classes, null, Collections.<Class, Class> emptyMap(), null, false, reader, false, false); + RuntimeModelBuilder builder = + new RuntimeModelBuilder(context, reader, Collections.<Class, Class> emptyMap(), null); + builder.setErrorHandler(errorListener); + for (Class c : classes) + builder.getTypeInfo(new Ref<Type, Class>(c)); + + RuntimeTypeInfoSet r = builder.link(); + errorListener.check(); + return r; + } + + private static class JAXBAccessor implements Accessor { + private Object target; + private RuntimePropertyInfo prop; + + public JAXBAccessor(Object target, RuntimePropertyInfo field) { + super(); + this.target = target; + this.prop = field; + } + + public String getName() { + return prop.getName(); + } + + public Object getValue() throws Exception { + return prop.getAccessor().get(target); + } + + public void setValue(Object value) throws Exception { + prop.getAccessor().set(target, value); + } + + public Class<?> getType() { + Type type = prop.getRawType(); + if (type instanceof Class) { + return (Class<?>)type; + } else if (type instanceof ParameterizedType) { + ParameterizedType pType = (ParameterizedType)type; + type = pType.getRawType(); + if (type instanceof Class) { + return (Class<?>)type; + } + } + return Object.class; + } + + } + + private static Map<String, Accessor> getAccessors(Object target) throws Exception { + if (target == null) { + return Collections.emptyMap(); + } + Map<String, Accessor> map = new HashMap<String, Accessor>(); + Class<?> type = target.getClass(); + RuntimeTypeInfoSet set = create(type); + RuntimeClassInfo clsInfo = (RuntimeClassInfo)set.getTypeInfo(type); + for (RuntimePropertyInfo f : clsInfo.getProperties()) { + map.put(f.getName(), new JAXBAccessor(target, f)); + } + return map; + } + +} |