Author: stevel
Date: Sun Jul 9 09:06:47 2006
New Revision: 420305
URL: http://svn.apache.org/viewvc?rev=420305&view=rev
Log:
well, if you put the docs in, you need to follow with the code. <hasMethod>
looks for methods.
Added:
ant/core/trunk/src/main/org/apache/tools/ant/taskdefs/condition/HasMethod.java
Modified:
ant/core/trunk/src/main/org/apache/tools/ant/taskdefs/condition/ConditionBase.java
Modified:
ant/core/trunk/src/main/org/apache/tools/ant/taskdefs/condition/ConditionBase.java
URL:
http://svn.apache.org/viewvc/ant/core/trunk/src/main/org/apache/tools/ant/taskdefs/condition/ConditionBase.java?rev=420305&r1=420304&r2=420305&view=diff
==============================================================================
---
ant/core/trunk/src/main/org/apache/tools/ant/taskdefs/condition/ConditionBase.java
(original)
+++
ant/core/trunk/src/main/org/apache/tools/ant/taskdefs/condition/ConditionBase.java
Sun Jul 9 09:06:47 2006
@@ -339,6 +339,17 @@
}
/**
+ * Add a <hasMethod> condition.
+ *
+ * @param test the condition
+ * @since Ant 1.7
+ */
+ public void addHasMethod(HasMethod test) {
+ add(test);
+ }
+
+
+ /**
* Add an <antversion> condition.
*
* @param test the condition
Added:
ant/core/trunk/src/main/org/apache/tools/ant/taskdefs/condition/HasMethod.java
URL:
http://svn.apache.org/viewvc/ant/core/trunk/src/main/org/apache/tools/ant/taskdefs/condition/HasMethod.java?rev=420305&view=auto
==============================================================================
---
ant/core/trunk/src/main/org/apache/tools/ant/taskdefs/condition/HasMethod.java
(added)
+++
ant/core/trunk/src/main/org/apache/tools/ant/taskdefs/condition/HasMethod.java
Sun Jul 9 09:06:47 2006
@@ -0,0 +1,165 @@
+/*
+ * Copyright 2005 The Apache Software Foundation
+ *
+ * Licensed 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.tools.ant.taskdefs.condition;
+
+import org.apache.tools.ant.types.Path;
+import org.apache.tools.ant.types.Reference;
+import org.apache.tools.ant.AntClassLoader;
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.ProjectComponent;
+
+import java.lang.reflect.Method;
+import java.lang.reflect.Field;
+
+/**
+ * test for a method
+ */
+public class HasMethod extends ProjectComponent implements Condition {
+ private String classname;
+ private String method;
+ private String field;
+ private Path classpath;
+ private AntClassLoader loader;
+ private boolean ignoreSystemClasses = false;
+
+
+ /**
+ * Set the classpath to be used when searching for classes and resources.
+ *
+ * @param classpath an Ant Path object containing the search path.
+ */
+ public void setClasspath(Path classpath) {
+ createClasspath().append(classpath);
+ }
+
+ /**
+ * Classpath to be used when searching for classes and resources.
+ *
+ * @return an empty Path instance to be configured by Ant.
+ */
+ public Path createClasspath() {
+ if (this.classpath == null) {
+ this.classpath = new Path(getProject());
+ }
+ return this.classpath.createPath();
+ }
+
+ /**
+ * Set the classpath by reference.
+ *
+ * @param r a Reference to a Path instance to be used as the classpath
+ * value.
+ */
+ public void setClasspathRef(Reference r) {
+ createClasspath().setRefid(r);
+ }
+
+ public void setClassname(String classname) {
+ this.classname = classname;
+ }
+
+ public void setMethod(String method) {
+ this.method = method;
+ }
+
+ public void setField(String field) {
+ this.field = field;
+ }
+
+ public void setIgnoreSystemClasses(boolean ignoreSystemClasses) {
+ this.ignoreSystemClasses = ignoreSystemClasses;
+ }
+
+ /**
+ * Check if a given class can be loaded.
+ */
+ private Class loadClass(String classname) {
+ try {
+ if (ignoreSystemClasses) {
+ loader = getProject().createClassLoader(classpath);
+ loader.setParentFirst(false);
+ loader.addJavaLibraries();
+ if (loader != null) {
+ try {
+ return loader.findClass(classname);
+ } catch (SecurityException se) {
+ // class found but restricted name; this is
+ // actually the case we're looking for in JDK 1.3+,
+ // so catch the exception and return
+ return null;
+ }
+ } else {
+ return null;
+ }
+ } else if (loader != null) {
+ return loader.loadClass(classname);
+ } else {
+ ClassLoader l = this.getClass().getClassLoader();
+ // Can return null to represent the bootstrap class loader.
+ // see API docs of Class.getClassLoader.
+ if (l != null) {
+ return Class.forName(classname, true, l);
+ } else {
+ return Class.forName(classname);
+ }
+ }
+ } catch (ClassNotFoundException e) {
+ throw new BuildException("class \"" + classname + "\" was not
found");
+ } catch (NoClassDefFoundError e) {
+ throw new BuildException("Could not load dependent class \"" +
e.getMessage()
+ + "\" for class \"" + classname + "\"");
+ }
+ }
+
+
+ public boolean eval() throws BuildException {
+ if(classname==null) {
+ throw new BuildException("No classname defined");
+ }
+ Class clazz=loadClass(classname);
+ if (method!=null) {
+ return isMethodFound(clazz);
+ }
+ if(field!=null) {
+ return isFieldFound(clazz);
+ }
+ throw new BuildException("Neither method nor field defined");
+ }
+
+ private boolean isFieldFound(Class clazz) {
+ Field[] fields = clazz.getDeclaredFields();
+ for(int i=0;i<fields.length;i++) {
+ Field fieldEntry=fields[i];
+ if(fieldEntry.getName().equals(field)) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ private boolean isMethodFound(Class clazz) {
+ Method[] methods = clazz.getDeclaredMethods();
+ for(int i=0;i<methods.length;i++) {
+ Method methodEntry =methods[i];
+ if(methodEntry.getName().equals(method)) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+}
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