diff options
Diffstat (limited to 'sca-java-1.x/tags/0.99-incubating/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/xml/BeanUtil.java')
| -rw-r--r-- | sca-java-1.x/tags/0.99-incubating/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/xml/BeanUtil.java | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/0.99-incubating/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/xml/BeanUtil.java b/sca-java-1.x/tags/0.99-incubating/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/xml/BeanUtil.java new file mode 100644 index 0000000000..345ad478cf --- /dev/null +++ b/sca-java-1.x/tags/0.99-incubating/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/xml/BeanUtil.java @@ -0,0 +1,196 @@ +/* + * 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.xml; + +import java.beans.BeanInfo; +import java.beans.Introspector; +import java.beans.PropertyDescriptor; +import java.lang.reflect.Array; +import java.util.ArrayList; +import java.util.Collection; +import java.util.Collections; +import java.util.HashMap; +import java.util.Iterator; +import java.util.List; +import java.util.Map; + +import javax.xml.namespace.QName; +import javax.xml.stream.XMLStreamReader; + +import org.apache.tuscany.sca.databinding.impl.SimpleTypeMapperImpl; +import org.apache.tuscany.sca.interfacedef.util.TypeInfo; + +public final class BeanUtil { + private static final Object[] NULL = null; + private static int nsCount = 1; + + private static final SimpleTypeMapperImpl MAPPER = new SimpleTypeMapperImpl(); + + private BeanUtil() { + } + + 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); + } + } + + /** + * To Serilize Bean object this method is used, this will create an object + * array using given bean object + * + * @param beanObject + * @param beanName + */ + public static XMLStreamReader getXMLStreamReader(Object beanObject, QName beanName) { + try { + ClassLoader cl = beanObject.getClass().getClassLoader(); + if (cl == null) { + cl = ClassLoader.getSystemClassLoader(); + } + String beanNS = beanName.getNamespaceURI(); + String beanPrefix = beanName.getPrefix(); + BeanInfo beanInfo = Introspector.getBeanInfo(beanObject.getClass()); + PropertyDescriptor[] propDescs = beanInfo.getPropertyDescriptors(); + Map<String, PropertyDescriptor> propertMap = new HashMap<String, PropertyDescriptor>(); + for (int i = 0; i < propDescs.length; i++) { + PropertyDescriptor propDesc = propDescs[i]; + propertMap.put(propDesc.getName(), propDesc); + } + List<String> properties = new ArrayList<String>(propertMap.keySet()); + Collections.sort(properties); + List<NamedProperty> props = new ArrayList<NamedProperty>(); + for (int i = 0; i < properties.size(); i++) { + String property = properties.get(i); + PropertyDescriptor propDesc = propertMap.get(property); + if (propDesc == null) { + // JAM does bad thing so I need to add this + continue; + } + Class ptype = propDesc.getPropertyType(); + if ("class".equals(property)) { + continue; + } + if (isSimpleType(ptype)) { + Object value = propDesc.getReadMethod().invoke(beanObject, NULL); + NamedProperty prop = + new NamedProperty(new QName(beanNS, property, beanPrefix), getStringValue(value)); + props.add(prop); + } else if (ptype.isArray()) { + if (isSimpleType(ptype.getComponentType())) { + Object value = propDesc.getReadMethod().invoke(beanObject, NULL); + if (value != null) { + int i1 = Array.getLength(value); + for (int j = 0; j < i1; j++) { + Object o = Array.get(value, j); + NamedProperty prop = + new NamedProperty(new QName(beanNS, property, beanPrefix), getStringValue(o)); + props.add(prop); + } + } else { + NamedProperty prop = new NamedProperty(new QName(beanNS, property, beanPrefix), value); + props.add(prop); + } + + } else { + Object value[] = (Object[])propDesc.getReadMethod().invoke(beanObject, NULL); + if (value != null) { + for (int j = 0; j < value.length; j++) { + Object o = value[j]; + NamedProperty prop = + new NamedProperty(new QName(beanNS, property, beanPrefix), getStringValue(o)); + props.add(prop); + } + } else { + NamedProperty prop = new NamedProperty(new QName(beanNS, property, beanPrefix), value); + props.add(prop); + } + } + } else if (Collection.class.isAssignableFrom(ptype)) { + Object value = propDesc.getReadMethod().invoke(beanObject, NULL); + Collection objList = (Collection)value; + if (objList != null && objList.size() > 0) { + // this was given error , when the array.size = 0 + // and if the array contain simple type , then the + // ADBPullParser asked + // PullParser from That simpel type + for (Iterator j = objList.iterator(); j.hasNext();) { + Object o = j.next(); + if (isSimpleType(o.getClass())) { + NamedProperty prop = + new NamedProperty(new QName(beanNS, property, beanPrefix), getStringValue(o)); + props.add(prop); + } else { + NamedProperty prop = new NamedProperty(new QName(beanNS, property, beanPrefix), o); + props.add(prop); + } + } + + } else { + NamedProperty prop = new NamedProperty(new QName(beanNS, property, beanPrefix), value); + props.add(prop); + } + } else { + Object value = propDesc.getReadMethod().invoke(beanObject, NULL); + NamedProperty prop = new NamedProperty(new QName(beanNS, property, beanPrefix), value); + props.add(prop); + } + } + NamedProperty[] elements = new NamedProperty[props.size()]; + props.toArray(elements); + return new XMLFragmentStreamReaderImpl(beanName, elements, null); + } catch (Exception e) { + throw new IllegalArgumentException(e); + } + } + + /** + * to get the pull parser for a given bean object , generate the wrpper + * element using class name + * + * @param beanObject + */ + public static XMLStreamReader getXMLStreamReader(Object beanObject) { + String className = beanObject.getClass().getName(); + if (className.indexOf(".") > 0) { + className = className.substring(className.lastIndexOf('.') + 1, className.length()); + } + return getXMLStreamReader(beanObject, new QName(className)); + } + + /** + * increments the namespace counter and returns a new prefix + * + * @return unique prefix + */ + public static String getUniquePrefix() { + return "s" + nsCount++; + } + +} |