xerces-j2/SOURCES/XJavac.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.xerces.util;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.types.Path;
import org.apache.tools.ant.util.JavaEnvUtils;
import org.apache.tools.ant.taskdefs.Javac;
import java.lang.StringBuffer;
import java.util.Properties;
import java.util.Locale;
/**
* The implementation of the javac compiler for JDK 1.4 and above
*
* The purpose of this task is to diagnose whether we're
* running on a 1.4 or above JVM; if we are, to
* set up the bootclasspath such that the build will
* succeed; if we aren't, then invoke the Javac12
* task.
*
* @author Neil Graham, IBM
*/
public class XJavac extends Javac {
/**
* Run the compilation.
*
* @exception BuildException if the compilation has problems.
*/
public void execute() throws BuildException {
if(isJDK14OrHigher()) {
// maybe the right one; check vendor:
// by checking system properties:
Properties props = null;
try {
props = System.getProperties();
} catch (Exception e) {
throw new BuildException("unable to determine java vendor because could not access system properties!");
}
// this is supposed to be provided by all JVM's from time immemorial
String vendor = ((String)props.get("java.vendor")).toUpperCase(Locale.ENGLISH);
if (vendor.indexOf("IBM") >= 0) {
// we're on an IBM 1.4 or higher; fiddle with the bootclasspath.
setBootclasspath(createIBMJDKBootclasspath());
}
// need to do special things for Sun too and also
// for Apple, HP, FreeBSD, SableVM, Kaffe and Blackdown: a Linux port of Sun Java
else if( (vendor.indexOf("SUN") >= 0) ||
(vendor.indexOf("BLACKDOWN") >= 0) ||
(vendor.indexOf("APPLE") >= 0) ||
(vendor.indexOf("HEWLETT-PACKARD") >= 0) ||
(vendor.indexOf("KAFFE") >= 0) ||
(vendor.indexOf("SABLE") >= 0) ||
(vendor.indexOf("FREEBSD") >= 0)) {
// we're on an SUN 1.4 or higher; fiddle with the bootclasspath.
// since we can't eviscerate XML-related info here,
// we must use the classpath
Path bcp = createBootclasspath();
Path clPath = getClasspath();
bcp.append(clPath);
String currBCP = (String)props.get("sun.boot.class.path");
Path currBCPath = new Path(null);
currBCPath.createPathElement().setPath(currBCP);
bcp.append(currBCPath);
setBootclasspath(bcp);
}
}
// now just do the normal thing:
super.execute();
}
/**
* Creates bootclasspath for IBM JDK 1.4 and above.
*/
private Path createIBMJDKBootclasspath() {
Path bcp = createBootclasspath();
String javaHome = System.getProperty("java.home");
StringBuffer bcpMember = new StringBuffer();
bcpMember.append(javaHome).append("/lib/charsets.jar:");
bcp.createPathElement().setPath(bcpMember.toString());
bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/core.jar:");
bcp.createPathElement().setPath(bcpMember.toString());
bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/vm.jar:");
bcp.createPathElement().setPath(bcpMember.toString());
bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/java.util.jar:");
bcp.createPathElement().setPath(bcpMember.toString());
bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/rt.jar:");
bcp.createPathElement().setPath(bcpMember.toString());
bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/graphics.jar:");
bcp.createPathElement().setPath(bcpMember.toString());
bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/javaws.jar:");
bcp.createPathElement().setPath(bcpMember.toString());
bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/jaws.jar:");
bcp.createPathElement().setPath(bcpMember.toString());
bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/security.jar:");
bcp.createPathElement().setPath(bcpMember.toString());
bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/server.jar:");
bcp.createPathElement().setPath(bcpMember.toString());
bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/ext/JawBridge.jar:");
bcp.createPathElement().setPath(bcpMember.toString());
bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/ext/gskikm.jar:");
bcp.createPathElement().setPath(bcpMember.toString());
bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/ext/ibmjceprovider.jar:");
bcp.createPathElement().setPath(bcpMember.toString());
bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/ext/indicim.jar:");
bcp.createPathElement().setPath(bcpMember.toString());
bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/ext/jaccess.jar:");
bcp.createPathElement().setPath(bcpMember.toString());
bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/ext/ldapsec.jar:");
bcp.createPathElement().setPath(bcpMember.toString());
bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/ext/oldcertpath.jar");
bcp.createPathElement().setPath(bcpMember.toString());
return bcp;
}
/**
* Checks whether the JDK version is 1.4 or higher. If it's not
* JDK 1.4 we check whether we're on a future JDK by checking
* that we're not on JDKs 1.0, 1.1, 1.2 or 1.3. This check by
* exclusion should future proof this task from new versions of
* Ant which are aware of higher JDK versions.
*
* @return true if the JDK version is 1.4 or higher.
*/
private boolean isJDK14OrHigher() {
final String version = JavaEnvUtils.getJavaVersion();
return version.equals(JavaEnvUtils.JAVA_1_4) ||
(!version.equals(JavaEnvUtils.JAVA_1_3) &&
!version.equals(JavaEnvUtils.JAVA_1_2) &&
!version.equals(JavaEnvUtils.JAVA_1_1) &&
!version.equals(JavaEnvUtils.JAVA_1_0));
}
}