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Posted to commits@commons.apache.org by si...@apache.org on 2011/05/14 17:06:22 UTC
svn commit: r1103122 -
/commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/binder/CallMethodBuilder.java
Author: simonetripodi
Date: Sat May 14 15:06:22 2011
New Revision: 1103122
URL: http://svn.apache.org/viewvc?rev=1103122&view=rev
Log:
first checkin of CallMethodBuilder class
Added:
commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/binder/CallMethodBuilder.java (with props)
Added: commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/binder/CallMethodBuilder.java
URL: http://svn.apache.org/viewvc/commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/binder/CallMethodBuilder.java?rev=1103122&view=auto
==============================================================================
--- commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/binder/CallMethodBuilder.java (added)
+++ commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/binder/CallMethodBuilder.java Sat May 14 15:06:22 2011
@@ -0,0 +1,187 @@
+/* $Id$
+ *
+ * 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.binder;
+
+import java.util.Arrays;
+
+import org.apache.commons.digester3.CallMethodRule;
+
+/**
+ * Builder chained when invoking {@link LinkedRuleBuilder#callMethod(String)}.
+ */
+public final class CallMethodBuilder
+ extends AbstractBackToLinkedRuleBuilder<CallMethodRule>
+{
+
+ private final String methodName;
+
+ private final ClassLoader classLoader;
+
+ private int targetOffset;
+
+ private int paramCount = 0;
+
+ private Class<?>[] paramTypes = new Class<?>[]{};
+
+ private boolean useExactMatch = false;
+
+ public CallMethodBuilder( String keyPattern, String namespaceURI, RulesBinder mainBinder,
+ LinkedRuleBuilder mainBuilder, String methodName, ClassLoader classLoader )
+ {
+ super( keyPattern, namespaceURI, mainBinder, mainBuilder );
+ this.methodName = methodName;
+ this.classLoader = classLoader;
+ }
+
+ /**
+ * Sets the location of the target object.
+ *
+ * Positive numbers are relative to the top of the digester object stack.
+ * Negative numbers are relative to the bottom of the stack. Zero implies the top object on the stack.
+ *
+ * @param targetOffset location of the target object.
+ * @return this builder instance
+ */
+ public CallMethodBuilder withTargetOffset( int targetOffset )
+ {
+ this.targetOffset = targetOffset;
+ return this;
+ }
+
+ /**
+ * Sets the Java class names that represent the parameter types of the method arguments.
+ *
+ * If you wish to use a primitive type, specify the corresonding Java wrapper class instead,
+ * such as {@code java.lang.Boolean.TYPE} for a {@code boolean} parameter.
+ *
+ * @param The Java classe names that represent the parameter types of the method arguments
+ * @return this builder instance
+ */
+ public CallMethodBuilder withParamTypes( String... paramTypeNames )
+ {
+ if ( paramTypeNames != null )
+ {
+ this.paramTypes = new Class[paramTypeNames.length];
+ for ( int i = 0; i < paramTypeNames.length; i++ )
+ {
+ try
+ {
+ this.paramTypes[i] = classLoader.loadClass( paramTypeNames[i] );
+ }
+ catch ( ClassNotFoundException e )
+ {
+ this.reportError( String.format( "callMethod(\"%s\").withParamTypes(%s)", this.methodName,
+ Arrays.toString( paramTypeNames ) ),
+ String.format( "class '%s' cannot be load", paramTypeNames[i] ) );
+ }
+ }
+ }
+
+ return this;
+ }
+
+ /**
+ * Sets the Java classes that represent the parameter types of the method arguments.
+ *
+ * If you wish to use a primitive type, specify the corresonding Java wrapper class instead,
+ * such as {@code java.lang.Boolean.TYPE} for a {@code boolean} parameter.
+ *
+ * @param paramTypes The Java classes that represent the parameter types of the method arguments
+ * @return this builder instance
+ */
+ public CallMethodBuilder withParamTypes( Class<?>... paramTypes )
+ {
+ this.paramTypes = paramTypes;
+
+ if ( paramTypes != null )
+ {
+ this.paramCount = paramTypes.length;
+ }
+
+ return this;
+ }
+
+ /**
+ * Should <code>MethodUtils.invokeExactMethod</code> be used for the reflection.
+ *
+ * @param useExactMatch Flag to mark exact matching or not
+ * @return this builder instance
+ */
+ public CallMethodBuilder useExactMatch( boolean useExactMatch )
+ {
+ this.useExactMatch = useExactMatch;
+ return this;
+ }
+
+ /**
+ * The number of parameters to collect, or zero for a single argument from the body of this element.
+ *
+ * @param paramCount The number of parameters to collect, or zero for a single argument
+ * from the body of this element.
+ * @return this builder instance
+ */
+ public CallMethodBuilder withParamCount( int paramCount )
+ {
+ if ( paramCount < 0 )
+ {
+ this.reportError( String.format( "callMethod(\"%s\").withParamCount(int)", this.methodName ),
+ "negative parameters counter not allowed" );
+ }
+
+ this.paramCount = paramCount;
+
+ if ( this.paramCount == 0 )
+ {
+ if ( this.paramTypes == null || this.paramTypes.length != 1 )
+ {
+ this.paramTypes = new Class<?>[] { String.class };
+ }
+ }
+ else
+ {
+ this.paramTypes = new Class<?>[this.paramCount];
+ for ( int i = 0; i < paramTypes.length; i++ )
+ {
+ this.paramTypes[i] = String.class;
+ }
+ }
+ return this;
+ }
+
+ /**
+ * Prepare the {@link CallMethodRule} to be invoked using the matching element body as argument.
+ *
+ * @return this builder instance
+ */
+ public CallMethodBuilder usingElementBodyAsArgument()
+ {
+ return withParamCount( 0 );
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ protected CallMethodRule createRule()
+ {
+ CallMethodRule callMethodRule = new CallMethodRule( targetOffset, methodName, paramCount, paramTypes );
+ callMethodRule.setUseExactMatch( useExactMatch );
+ return callMethodRule;
+ }
+
+}
Propchange: commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/binder/CallMethodBuilder.java
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