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java/org/apache/catalina/ant/JMXSetTask.java

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+/*
+ * 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.catalina.ant;
+
+
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+
+import org.apache.tools.ant.BuildException;
+
+
+/**
+ * Ant task that implements the JMX Set command (<code>/jmxproxy/?set</code>)
+ * supported by the Tomcat manager application.
+ *
+ * @author Vivek Chopra
+ */
+public class JMXSetTask extends AbstractCatalinaTask {
+
+    // Properties
+
+    /**
+     * The full bean name
+     */
+    protected String bean      = null;
+
+    /**
+     * The attribute you wish to alter
+     */
+    protected String attribute = null;
+
+    /**
+     * The new value for the attribute
+     */
+    protected String value     = null;
+
+    // Public Methods
+
+    /**
+     * Get method for the bean name
+     * @return Bean name
+     */
+    public String getBean () {
+        return this.bean;
+    }
+
+    /**
+     * Set method for the bean name
+     * @param bean Bean name
+     */
+    public void setBean (String bean) {
+        this.bean = bean;
+    }
+
+    /**
+     * Get method for the attribute name
+     * @return Attribute name
+     */
+    public String getAttribute () {
+        return this.attribute;
+    }
+
+    /**
+     * Set method for the attribute name
+     * @param attribute Attribute name
+     */
+    public void setAttribute (String attribute) {
+        this.attribute = attribute;
+    }
+
+    /**
+     * Get method for the attribute value
+     * @return Attribute value
+     */
+    public String getValue () {
+        return this.value;
+    }
+
+    /**
+     * Set method for the attribute value.
+     * @param value Attribute value
+     */
+    public void setValue (String value) {
+        this.value = value;
+    }
+
+    /**
+     * Execute the requested operation.
+     *
+     * @exception BuildException if an error occurs
+     */
+    @Override
+    public void execute() throws BuildException {
+        super.execute();
+        if (bean == null || attribute == null || value == null) {
+            throw new BuildException
+                ("Must specify 'bean', 'attribute' and 'value' attributes");
+        }
+        log("Setting attribute " + attribute +
+                            " in bean " + bean +
+                            " to " + value);
+        try {
+            execute("/jmxproxy/?set=" + URLEncoder.encode(bean, getCharset())
+                    + "&att=" + URLEncoder.encode(attribute, getCharset())
+                    + "&val=" + URLEncoder.encode(value, getCharset()));
+        } catch (UnsupportedEncodingException e) {
+            throw new BuildException
+                ("Invalid 'charset' attribute: " + getCharset());
+        }
+    }
+}