Author: simonetripodi
Date: Sat Jan 29 21:00:44 2011
New Revision: 1065109
URL: http://svn.apache.org/viewvc?rev=1065109&view=rev
Log:
first checkin of SetPropertyRule
Added:
commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/SetPropertyRule.java
(with props)
Added:
commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/SetPropertyRule.java
URL:
http://svn.apache.org/viewvc/commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/SetPropertyRule.java?rev=1065109&view=auto
==============================================================================
---
commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/SetPropertyRule.java
(added)
+++
commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/SetPropertyRule.java
Sat Jan 29 21:00:44 2011
@@ -0,0 +1,129 @@
+/* $Id$
+ *
+ * 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.commons.digester3;
+
+import java.beans.PropertyDescriptor;
+
+import org.apache.commons.beanutils.BeanUtils;
+import org.apache.commons.beanutils.DynaBean;
+import org.apache.commons.beanutils.DynaProperty;
+import org.apache.commons.beanutils.PropertyUtils;
+import org.xml.sax.Attributes;
+
+/**
+ * Rule implementation that sets an individual property on the object at the
+ * top of the stack, based on attributes with specified names.
+ */
+public class SetPropertyRule extends Rule {
+
+ /**
+ * The attribute that will contain the property name.
+ */
+ private final String name;
+
+ /**
+ * The attribute that will contain the property value.
+ */
+ private final String value;
+
+ /**
+ * Construct a "set property" rule with the specified name and value
+ * attributes.
+ *
+ * @param name Name of the attribute that will contain the name of the
+ * property to be set
+ * @param value Name of the attribute that will contain the value to which
+ * the property should be set
+ */
+ public SetPropertyRule(String name, String value) {
+ this.name = name;
+ this.value = value;
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public void begin(String namespace, String name, Attributes attributes)
throws Exception {
+ if (attributes.getLength() == 0) {
+ return;
+ }
+
+ // Identify the actual property name and value to be used
+ String actualName = null;
+ String actualValue = null;
+ for (int i = 0; i < attributes.getLength(); i++) {
+ String localName = attributes.getLocalName(i);
+ if ("".equals(localName)) {
+ localName = attributes.getQName(i);
+ }
+ String value = attributes.getValue(i);
+ if (localName.equals(this.name)) {
+ actualName = value;
+ } else if (localName.equals(this.value)) {
+ actualValue = value;
+ }
+ }
+
+ // Get a reference to the top object
+ Object top = this.getDigester().peek();
+
+ // Log some debugging information
+ if (this.getDigester().getLog().isDebugEnabled()) {
+
this.getDigester().getLog().debug(String.format("[SetPropertyRule]{%s} Set %s
property %s to %s",
+ this.getDigester().getMatch(),
+ top.getClass().getName(),
+ actualName,
+ actualValue));
+ }
+
+ // Force an exception if the property does not exist
+ // (BeanUtils.setProperty() silently returns in this case)
+ //
+ // This code should probably use PropertyUtils.isWriteable(),
+ // like SetPropertiesRule does.
+ if (top instanceof DynaBean) {
+ DynaProperty desc =
+ ((DynaBean) top).getDynaClass().getDynaProperty(actualName);
+ if (desc == null) {
+ throw new NoSuchMethodException("Bean has no property named "
+ + actualName);
+ }
+ } else /* this is a standard JavaBean */ {
+ PropertyDescriptor desc = PropertyUtils.getPropertyDescriptor(top,
actualName);
+ if (desc == null) {
+ throw new NoSuchMethodException("Bean has no property named "
+ + actualName);
+ }
+ }
+
+ // Set the property (with conversion as necessary)
+ BeanUtils.setProperty(top, actualName, actualValue);
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public final String toString() {
+ return String.format("SetPropertyRule[name=%s, value=%s]",
+ this.name,
+ this.value);
+ }
+
+}
Propchange:
commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/SetPropertyRule.java
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