File	Doc	Category	Size	Date	Package
JMXAccessorCondition.java	API Doc	Apache Tomcat 6.0.14	12699	Fri Jul 20 04:20:36 BST 2007	org.apache.catalina.ant.jmx

JMXAccessorCondition

• java.lang.Object
  • org.apache.tools.ant.ProjectComponent

<path id="catalina_ant">
<fileset dir="${catalina.home}/server/lib">
<include name="catalina-ant.jar"/>
<include name="catalina-ant-jmx.jar"/>
</fileset>
</path>

<typedef
name="jmxCondition"
classname="org.apache.catalina.ant.jmx.JMXAccessorCondition"
classpathref="catalina_ant"/>
<taskdef
name="jmxOpen"
classname="org.apache.catalina.ant.jmx.JMXAccessorTask"
classpathref="catalina_ant"/>

<target name="wait">
<jmxOpen
host="${jmx.host}" port="${jmx.port}" username="${jmx.username}" password="${jmx.password}" />
<waitfor maxwait="${maxwait}" maxwaitunit="second" timeoutproperty="server.timeout" >
<and>
<socket server="${server.name}" port="${server.port}"/>
<http url="${url}"/>
<jmxCondition
name="Catalina:type=IDataSender,host=localhost,senderAddress=192.168.111.1,senderPort=9025"
operation="=="
attribute="connected" value="true"
/>
<jmxCondition
operation="&lt;"
name="Catalina:j2eeType=WebModule,name=//${tomcat.application.host}${tomcat.application.path},J2EEApplication=none,J2EEServer=none"
attribute="startupTime" value="250"
/>
</and>
</waitfor>
<fail if="server.timeout" message="Server ${url} don't answer inside ${maxwait} sec" />
<echo message="Server ${url} alive" />
</target>

Fields Summary
private String	url
private String	host
private String	port
private String	password
private String	username
private String	name
private String	attribute
private String	value
private String	operation
private String	type
private String	ref
private String	unlessCondition
private String	ifCondition
private static final String	info Descriptive information describing this implementation.

Constructors Summary

Methods Summary
protected java.lang.String	accessJMXValue() Get value from MBeans attribute return The value try { Object result = getJMXConnection().getAttribute( new ObjectName(name), attribute); if(result != null) return result.toString(); } catch (Exception e) { // ignore access or connection open errors } return null;
public boolean	eval() This method evaluates the condition It support for operation ">,>=,<,<=" the types long and double. return expression jmxValue operation value if (operation == null) { throw new BuildException("operation attribute is not set"); } if (value == null) { throw new BuildException("value attribute is not set"); } if ((name == null || attribute == null)) { throw new BuildException( "Must specify a 'attribute', name for equals condition"); } if (testIfCondition() && testUnlessCondition()) { String jmxValue = accessJMXValue(); if (jmxValue != null) { String op = getOperation(); if ("==".equals(op)) { return jmxValue.equals(value); } else if ("!=".equals(op)) { return !jmxValue.equals(value); } else { if ("long".equals(type)) { long jvalue = Long.parseLong(jmxValue); long lvalue = Long.parseLong(value); if (">".equals(op)) { return jvalue > lvalue; } else if (">=".equals(op)) { return jvalue >= lvalue; } else if ("<".equals(op)) { return jvalue < lvalue; } else if ("<=".equals(op)) { return jvalue <= lvalue; } } else if ("double".equals(type)) { double jvalue = Double.parseDouble(jmxValue); double dvalue = Double.parseDouble(value); if (">".equals(op)) { return jvalue > dvalue; } else if (">=".equals(op)) { return jvalue >= dvalue; } else if ("<".equals(op)) { return jvalue < dvalue; } else if ("<=".equals(op)) { return jvalue <= dvalue; } } } } return false; } return true;
public java.lang.String	getAttribute() return Returns the attribute. return attribute;
public java.lang.String	getHost() return Returns the host. return host;
public java.lang.String	getIf() return Returns the ifCondition. return ifCondition;
public java.lang.String	getInfo() Return descriptive information about this implementation and the corresponding version number, in the format <description>/<version>. return (info);
protected javax.management.MBeanServerConnection	getJMXConnection() Get JMXConnection (default look at jmx.server project reference from jmxOpen Task) return active JMXConnection throws MalformedURLException throws IOException return JMXAccessorTask.accessJMXConnection( getProject(), getUrl(), getHost(), getPort(), getUsername(), getPassword(), ref);
public java.lang.String	getName() return Returns the name. return name;
public java.lang.String	getOperation() return Returns the operation. return operation;
public java.lang.String	getPassword() return Returns the password. return password;
public java.lang.String	getPort() return Returns the port. return port;
public java.lang.String	getRef() return Returns the ref. return ref;
public java.lang.String	getType() return Returns the type. return type;
public java.lang.String	getUnless() return Returns the unlessCondition. return unlessCondition;
public java.lang.String	getUrl() return Returns the url. return url;
public java.lang.String	getUsername() return Returns the username. return username;
public java.lang.String	getValue() return Returns the value. return value;
public void	setAttribute(java.lang.String attribute) param attribute The attribute to set. this.attribute = attribute;
public void	setHost(java.lang.String host) param host The host to set. this.host = host;
public void	setIf(java.lang.String c) Only execute if a property of the given name exists in the current project. param c property name ifCondition = c;
public void	setName(java.lang.String objectName) param objectName The name to set. this.name = objectName;
public void	setOperation(java.lang.String operation) param operation The operation to set. this.operation = operation;
public void	setPassword(java.lang.String password) param password The password to set. this.password = password;
public void	setPort(java.lang.String port) param port The port to set. this.port = port;
public void	setRef(java.lang.String refId) param refId The ref to set. this.ref = refId;
public void	setType(java.lang.String type) param type The type to set. this.type = type;
public void	setUnless(java.lang.String c) Only execute if a property of the given name does not exist in the current project. param c property name unlessCondition = c;
public void	setUrl(java.lang.String url) param url The url to set. this.url = url;
public void	setUsername(java.lang.String username) param username The username to set. this.username = username;
public void	setValue(java.lang.String value) this.value = value;
protected boolean	testIfCondition() test the if condition return true if there is no if condition, or the named property exists if (ifCondition == null || "".equals(ifCondition)) { return true; } return getProject().getProperty(ifCondition) != null;
protected boolean	testUnlessCondition() test the unless condition return true if there is no unless condition, or there is a named property but it doesn't exist if (unlessCondition == null || "".equals(unlessCondition)) { return true; } return getProject().getProperty(unlessCondition) == null;