diff options
author | lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68> | 2009-11-11 23:26:33 +0000 |
---|---|---|
committer | lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68> | 2009-11-11 23:26:33 +0000 |
commit | a40e527938d76ba71f211da7e327adb50384ba69 (patch) | |
tree | cb8f99f1727122b040a3f0fbb6649292b6a74302 /sca-java-1.x/tags/1.5-RC0/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom | |
parent | 968721109881107520d7aefa91d7fcc0519d7739 (diff) |
Moving 1.x tags
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@835157 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'sca-java-1.x/tags/1.5-RC0/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom')
5 files changed, 631 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.5-RC0/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/AxiomHelper.java b/sca-java-1.x/tags/1.5-RC0/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/AxiomHelper.java new file mode 100644 index 0000000000..93277e77bf --- /dev/null +++ b/sca-java-1.x/tags/1.5-RC0/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/AxiomHelper.java @@ -0,0 +1,140 @@ +/* + * 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.axiom; + +import javax.xml.namespace.QName; + +import org.apache.axiom.om.OMAbstractFactory; +import org.apache.axiom.om.OMDataSource; +import org.apache.axiom.om.OMElement; +import org.apache.axiom.om.OMFactory; +import org.apache.axiom.om.OMNamespace; +import org.apache.axiom.om.OMXMLParserWrapper; +import org.apache.axiom.om.impl.builder.StAXBuilder; +import org.apache.tuscany.sca.databinding.TransformationContext; +import org.apache.tuscany.sca.interfacedef.DataType; +import org.apache.tuscany.sca.interfacedef.util.XMLType; + +/** + * Helper for AXIOM + * + * @version $Rev$ $Date$ + */ +public class AxiomHelper { + private static final String DEFAULT_PREFIX = "_ns_"; + + private AxiomHelper() { + } + + /** + * See http://issues.apache.org/jira/browse/WSCOMMONS-240 + * @param om + */ + public static void completeAndClose(OMElement om) { + // Get the builder associated with the om element + OMXMLParserWrapper builder = om.getBuilder(); + if (builder != null) { + if (builder instanceof StAXBuilder) { + ((StAXBuilder)builder).releaseParserOnClose(true); + } + OMElement document = builder.getDocumentElement(); + if (document != null) { + document.build(); + } + } + if (builder instanceof StAXBuilder) { + ((StAXBuilder)builder).close(); + } + } + + /** + * This method will close the builder immediately. Any subsequent Axiom objects won't + * be built or accessible. + */ + public static void closeImmediately(OMElement om) { + // Get the builder associated with the om element + OMXMLParserWrapper builder = om.getBuilder(); + if (builder != null) { + if (builder instanceof StAXBuilder) { + ((StAXBuilder)builder).releaseParserOnClose(true); + ((StAXBuilder)builder).close(); + } + // builder.close(); + } + } + + /** + * @param context + * @param element + */ + public static void adjustElementName(TransformationContext context, OMElement element) { + if (context != null) { + DataType<?> dataType = context.getTargetDataType(); + Object logical = dataType == null ? null : dataType.getLogical(); + if (!(logical instanceof XMLType)) { + return; + } + XMLType xmlType = (XMLType)logical; + if (xmlType.isElement() && !xmlType.getElementName().equals(element.getQName())) { + // FIXME:: Throw exception or switch to the new Element? + OMFactory factory = OMAbstractFactory.getOMFactory(); + QName name = xmlType.getElementName(); + OMNamespace namespace = factory.createOMNamespace(name.getNamespaceURI(), name.getPrefix()); + element.setNamespace(namespace); + element.setLocalName(name.getLocalPart()); + } + } + } + + public static OMElement createOMElement(OMFactory factory, QName element) { + String localName = element.getLocalPart(); + OMNamespace ns = createOMNamespace(factory, element); + + return factory.createOMElement(localName, ns); + + } + + public static OMElement createOMElement(OMFactory factory, QName element, OMDataSource dataSource) { + String localName = element.getLocalPart(); + OMNamespace ns = createOMNamespace(factory, element); + + return factory.createOMElement(dataSource, localName, ns); + + } + + /** + * @param factory + * @param name + * @return + */ + public static OMNamespace createOMNamespace(OMFactory factory, QName name) { + String namespaceURI = name.getNamespaceURI(); + String prefix = name.getPrefix(); + + OMNamespace ns = null; + // Qualified Element: we need an OMNamespace + if (prefix.length() == 0) { + // The prefix does not appear to be specified, let's create one + prefix = DEFAULT_PREFIX; + } + ns = factory.createOMNamespace(namespaceURI, prefix); + return ns; + } +} diff --git a/sca-java-1.x/tags/1.5-RC0/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/JAXB2OMElement.java b/sca-java-1.x/tags/1.5-RC0/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/JAXB2OMElement.java new file mode 100644 index 0000000000..c4726ad8fa --- /dev/null +++ b/sca-java-1.x/tags/1.5-RC0/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/JAXB2OMElement.java @@ -0,0 +1,78 @@ +/* + * 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.axiom; + +import javax.xml.bind.JAXBContext; +import javax.xml.bind.JAXBException; +import javax.xml.namespace.QName; + +import org.apache.axiom.om.OMAbstractFactory; +import org.apache.axiom.om.OMElement; +import org.apache.axiom.om.OMFactory; +import org.apache.tuscany.sca.databinding.PullTransformer; +import org.apache.tuscany.sca.databinding.TransformationContext; +import org.apache.tuscany.sca.databinding.TransformationException; +import org.apache.tuscany.sca.databinding.impl.BaseTransformer; +import org.apache.tuscany.sca.databinding.jaxb.JAXBContextHelper; +import org.apache.tuscany.sca.databinding.jaxb.JAXBDataBinding; + +/** + * JAXB Object --> AXIOM OMElement transformer + * + * @version $Rev$ $Date$ + */ +public class JAXB2OMElement extends BaseTransformer<Object, OMElement> implements PullTransformer<Object, OMElement> { + private OMFactory factory = OMAbstractFactory.getOMFactory(); + + @Override + public String getSourceDataBinding() { + return JAXBDataBinding.NAME; + } + + @SuppressWarnings("unchecked") + public OMElement transform(Object source, TransformationContext context) throws TransformationException { + JAXBContext jaxbContext; + try { + jaxbContext = JAXBContextHelper.createJAXBContext(context, true); + } catch (JAXBException e) { + throw new TransformationException(e); + } + Object element = JAXBContextHelper.createJAXBElement(jaxbContext, context.getTargetDataType(), source); + QName name = jaxbContext.createJAXBIntrospector().getElementName(element); + JAXBDataSource dataSource = new JAXBDataSource(element, jaxbContext); + OMElement omElement = AxiomHelper.createOMElement(factory, name, dataSource); + return omElement; + } + + @Override + public Class<Object> getSourceType() { + return Object.class; + } + + @Override + public Class<OMElement> getTargetType() { + return OMElement.class; + } + + @Override + public int getWeight() { + return 3000; + } + +} diff --git a/sca-java-1.x/tags/1.5-RC0/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/JAXBCustomBuilder.java b/sca-java-1.x/tags/1.5-RC0/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/JAXBCustomBuilder.java new file mode 100644 index 0000000000..4876396495 --- /dev/null +++ b/sca-java-1.x/tags/1.5-RC0/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/JAXBCustomBuilder.java @@ -0,0 +1,116 @@ +/*
+ * 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.axiom;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.JAXBException;
+import javax.xml.bind.Unmarshaller;
+import javax.xml.stream.XMLStreamReader;
+
+import org.apache.axiom.om.OMContainer;
+import org.apache.axiom.om.OMDataSource;
+import org.apache.axiom.om.OMElement;
+import org.apache.axiom.om.OMException;
+import org.apache.axiom.om.OMFactory;
+import org.apache.axiom.om.OMNamespace;
+import org.apache.axiom.om.impl.builder.CustomBuilder;
+
+/**
+ * JAXBCustomBuilder creates an OMSourcedElement backed by a JAXBDataSource
+ * for the specified namespace and localPart.
+ */
+public class JAXBCustomBuilder implements CustomBuilder {
+ private Class<?> type;
+ private JAXBContext jaxbContext;
+ private Unmarshaller unmarshaller;
+
+ /**
+ * Create a JAXBCustomBuilder
+ * @param context JAXBDSContext
+ */
+ public JAXBCustomBuilder(JAXBContext context, Class<?> type, Unmarshaller unmarshaller) {
+ super();
+ this.type = type;
+ this.jaxbContext = context;
+ this.unmarshaller = unmarshaller;
+ }
+
+ public OMElement create(String namespace,
+ String localPart,
+ OMContainer parent,
+ XMLStreamReader reader,
+ OMFactory factory) throws OMException {
+
+ // There are some situations where we want to use normal
+ // unmarshalling, so return null
+ if (!shouldUnmarshal(namespace, localPart)) {
+ return null;
+ }
+ try {
+ // Create an OMSourcedElement backed by an unmarshalled JAXB object
+ OMNamespace ns = factory.createOMNamespace(namespace, reader.getPrefix());
+
+ Object jaxb = unmarshaller.unmarshal(reader, type);
+
+ OMDataSource ds = new JAXBDataSource(jaxb, jaxbContext);
+ OMElement omse = factory.createOMElement(ds, localPart, ns);
+
+ parent.addChild(omse);
+ return omse;
+ } catch (JAXBException e) {
+ throw new OMException(e);
+ }
+ }
+
+ /**
+ * The namespace identifier for the SOAP 1.1 envelope.
+ */
+ public static final String URI_NS_SOAP_1_1_ENVELOPE = "http://schemas.xmlsoap.org/soap/envelope/";
+ /**
+ * The namespace identifier for the SOAP 1.2 envelope.
+ */
+ public static final String URI_NS_SOAP_1_2_ENVELOPE = "http://www.w3.org/2003/05/soap-envelope";
+
+ /**
+ * @param namespace
+ * @param localPart
+ * @return true if this ns and local part is acceptable for unmarshalling
+ */
+ private boolean shouldUnmarshal(String namespace, String localPart) {
+
+ // Don't unmarshall SOAPFaults or anything else in the SOAP
+ // namespace.
+ // Don't unmarshall elements that are unqualified
+ if (localPart == null || namespace == null
+ || namespace.length() == 0
+ || URI_NS_SOAP_1_1_ENVELOPE.equals(namespace)
+ || URI_NS_SOAP_1_2_ENVELOPE.equals(namespace)) {
+ return false;
+ }
+
+ // Don't unmarshal if this looks like encrypted data
+ if (localPart.equals("EncryptedData")) {
+ return false;
+ }
+
+ return true;
+
+ }
+}
diff --git a/sca-java-1.x/tags/1.5-RC0/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/JAXBDataSource.java b/sca-java-1.x/tags/1.5-RC0/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/JAXBDataSource.java new file mode 100644 index 0000000000..d5cd68cd70 --- /dev/null +++ b/sca-java-1.x/tags/1.5-RC0/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/JAXBDataSource.java @@ -0,0 +1,207 @@ +/* + * 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.axiom; + +import java.io.OutputStream; +import java.io.StringReader; +import java.io.StringWriter; +import java.io.UnsupportedEncodingException; +import java.io.Writer; +import java.lang.reflect.Method; +import java.security.AccessController; +import java.security.PrivilegedActionException; +import java.security.PrivilegedExceptionAction; + +import javax.xml.bind.JAXBContext; +import javax.xml.bind.JAXBException; +import javax.xml.bind.Marshaller; +import javax.xml.stream.XMLStreamException; +import javax.xml.stream.XMLStreamReader; +import javax.xml.stream.XMLStreamWriter; + +import org.apache.axiom.om.OMDataSourceExt; +import org.apache.axiom.om.OMOutputFormat; +import org.apache.axiom.om.ds.OMDataSourceExtBase; +import org.apache.axiom.om.impl.MTOMXMLStreamWriter; +import org.apache.axiom.om.util.StAXUtils; +import org.apache.tuscany.sca.databinding.jaxb.JAXBContextHelper; + +/** + * + * @version $Rev$ $Date$ + */ +public class JAXBDataSource extends OMDataSourceExtBase { + private JAXBContext context; + private Object element; + private Marshaller marshaller; + + public JAXBDataSource(Object element, JAXBContext context) { + this.element = element; + this.context = context; + } + + private Marshaller getMarshaller() throws JAXBException { + if (marshaller == null) { + // For thread safety, not sure we can cache the marshaller + marshaller = JAXBContextHelper.getMarshaller(context); + } + return marshaller; + } + + private void releaseMarshaller(Marshaller marshaller) { + JAXBContextHelper.releaseJAXBMarshaller(context, marshaller); + } + + public XMLStreamReader getReader() throws XMLStreamException { + // FIXME: [rfeng] This is a quick and dirty implementation + // We could use the fastinfoset to optimize the roundtrip + StringWriter writer = new StringWriter(); + serialize(writer, new OMOutputFormat()); + StringReader reader = new StringReader(writer.toString()); + return StAXUtils.createXMLStreamReader(reader); + } + + /** + * If the writer is backed by an OutputStream, then return the OutputStream + * @param writer + * @return OutputStream or null + */ + private static OutputStream getOutputStream(XMLStreamWriter writer) throws XMLStreamException { + if (writer.getClass() == MTOMXMLStreamWriter.class) { + return ((MTOMXMLStreamWriter)writer).getOutputStream(); + } + + try { + Method method = writer.getClass().getMethod("getOutputStream"); + return (OutputStream)method.invoke(writer); + + } catch (NoSuchMethodException e) { + return null; + } catch (Exception e) { + return null; + } + } + + public void serialize(final XMLStreamWriter xmlWriter) throws XMLStreamException { + try { + // marshaller.setProperty(Marshaller.JAXB_ENCODING, format.getCharSetEncoding()); + AccessController.doPrivileged(new PrivilegedExceptionAction<Object>() { + public Object run() throws Exception { + try { + Marshaller marshaller = getMarshaller(); + // Marshalling directly to the output stream is faster than marshalling through the + // XMLStreamWriter. Take advantage of this optimization if there is an output stream. + OutputStream os = getOutputStream(xmlWriter); + if (os != null) { + marshaller.marshal(element, os); + } else { + marshaller.marshal(element, xmlWriter); + } + } finally { + releaseMarshaller(marshaller); + } + return null; + } + }); + } catch (PrivilegedActionException e) { + throw new XMLStreamException(e.getException()); + } + } + + public void serialize(final OutputStream output, OMOutputFormat format) throws XMLStreamException { + try { + // marshaller.setProperty(Marshaller.JAXB_ENCODING, format.getCharSetEncoding()); + AccessController.doPrivileged(new PrivilegedExceptionAction<Object>() { + public Object run() throws Exception { + try { + Marshaller marshaller = getMarshaller(); + marshaller.marshal(element, output); + } finally { + releaseMarshaller(marshaller); + } + return null; + } + }); + } catch (PrivilegedActionException e) { + throw new XMLStreamException(e.getException()); + } + } + + public void serialize(final Writer writer, OMOutputFormat format) throws XMLStreamException { + try { + AccessController.doPrivileged(new PrivilegedExceptionAction<Object>() { + public Object run() throws Exception { + try { + Marshaller marshaller = getMarshaller(); + marshaller.marshal(element, writer); + } finally { + releaseMarshaller(marshaller); + } + return null; + } + }); + } catch (PrivilegedActionException e) { + throw new XMLStreamException(e.getException()); + } + } + + public Object getObject() { + return element; + } + + public void close() { + } + + public OMDataSourceExt copy() { + return new JAXBDataSource(element, context); + } + + public byte[] getXMLBytes(final String encoding) throws UnsupportedEncodingException { + try { + return AccessController.doPrivileged(new PrivilegedExceptionAction<byte[]>() { + public byte[] run() throws JAXBException, XMLStreamException, UnsupportedEncodingException { + try { + StringWriter sw = new StringWriter(); + Marshaller marshaller = getMarshaller(); + marshaller.marshal(element, sw); + return sw.toString().getBytes(encoding); + } finally { + releaseMarshaller(marshaller); + } + } + }); + } catch (PrivilegedActionException e) { + Throwable t = e.getCause(); + if (t instanceof UnsupportedEncodingException) { + throw (UnsupportedEncodingException)t; + } else { + throw new RuntimeException(t); + } + } + } + + public boolean isDestructiveRead() { + return false; + } + + public boolean isDestructiveWrite() { + return false; + } + +} diff --git a/sca-java-1.x/tags/1.5-RC0/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/OMElement2JAXB.java b/sca-java-1.x/tags/1.5-RC0/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/OMElement2JAXB.java new file mode 100644 index 0000000000..848f6d1a85 --- /dev/null +++ b/sca-java-1.x/tags/1.5-RC0/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/OMElement2JAXB.java @@ -0,0 +1,90 @@ +/* + * 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.axiom; + +import java.security.AccessController; +import java.security.PrivilegedActionException; +import java.security.PrivilegedExceptionAction; + +import javax.xml.bind.JAXBContext; +import javax.xml.bind.JAXBException; +import javax.xml.bind.Unmarshaller; +import javax.xml.stream.XMLStreamException; +import javax.xml.stream.XMLStreamReader; + +import org.apache.axiom.om.OMElement; +import org.apache.tuscany.sca.databinding.PullTransformer; +import org.apache.tuscany.sca.databinding.TransformationContext; +import org.apache.tuscany.sca.databinding.TransformationException; +import org.apache.tuscany.sca.databinding.impl.BaseTransformer; +import org.apache.tuscany.sca.databinding.jaxb.JAXBContextHelper; + +/** + * @version $Rev$ $Date$ + */ +public class OMElement2JAXB extends BaseTransformer<OMElement, Object> implements PullTransformer<OMElement, Object> { + + @Override + public String getSourceDataBinding() { + return org.apache.axiom.om.OMElement.class.getName(); + } + + public Object transform(final OMElement source, final TransformationContext context) throws TransformationException { + try { + return AccessController.doPrivileged(new PrivilegedExceptionAction<Object>() { + public Object run() throws JAXBException, XMLStreamException { + Unmarshaller unmarshaller = null; + XMLStreamReader reader = null; + Object result = null; + + JAXBContext jaxbContext = JAXBContextHelper.createJAXBContext(context, false); + try { + Class<?> type = JAXBContextHelper.getJavaType(context.getTargetDataType()); + unmarshaller = JAXBContextHelper.getUnmarshaller(jaxbContext); + reader = source.getXMLStreamReaderWithoutCaching(); + result = unmarshaller.unmarshal(reader, type); + } finally { + if (reader != null) { + reader.close(); + } + JAXBContextHelper.releaseJAXBUnmarshaller(jaxbContext, unmarshaller); + } + return JAXBContextHelper.createReturnValue(jaxbContext, context.getTargetDataType(), result); + } + }); + } catch (PrivilegedActionException e) { + throw new TransformationException(e.getException()); + } + } + + @Override + public Class<OMElement> getSourceType() { + return OMElement.class; + } + + @Override + public Class<Object> getTargetType() { + return Object.class; + } + + @Override + public int getWeight() { + return 3000; + } +} |