current/SOURCES/XJavac.java

/*
 * Copyright 2001-2005 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.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 IBM JDK 1.4
 *
 * The purpose of this task is to diagnose whether we're
 * running on an IBM 1.4 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; fiddle with the bootclasspath.
                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/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());
                setBootclasspath(bcp);
            }
            // need to do special things for Sun too and also
            // for Apple, HP 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)) {
                // we're on an SUN 1.4; 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();
    }
    
    /**
     * 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));
    }
}
1	/*
2	* Copyright 2001-2005 The Apache Software Foundation.
3	*
4	* Licensed under the Apache License, Version 2.0 (the "License");
5	* you may not use this file except in compliance with the License.
6	* You may obtain a copy of the License at
7	*
8	* http://www.apache.org/licenses/LICENSE-2.0
9	*
10	* Unless required by applicable law or agreed to in writing, software
11	* distributed under the License is distributed on an "AS IS" BASIS,
12	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13	* See the License for the specific language governing permissions and
14	* limitations under the License.
15	*/
16
17	package org.apache.xerces.util;
18
19	import org.apache.tools.ant.BuildException;
20	import org.apache.tools.ant.Project;
21	import org.apache.tools.ant.types.Path;
22	import org.apache.tools.ant.util.JavaEnvUtils;
23	import org.apache.tools.ant.taskdefs.Javac;
24
25	import java.lang.StringBuffer;
26	import java.util.Properties;
27	import java.util.Locale;
28
29	/**
30	* The implementation of the javac compiler for IBM JDK 1.4
31	*
32	* The purpose of this task is to diagnose whether we're
33	* running on an IBM 1.4 JVM; if we are, to
34	* set up the bootclasspath such that the build will
35	* succeed; if we aren't, then invoke the Javac12
36	* task.
37	*
38	* @author Neil Graham, IBM
39	*/
40
41	public class XJavac extends Javac {
42
43	/**
44	* Run the compilation.
45	*
46	* @exception BuildException if the compilation has problems.
47	*/
48	public void execute() throws BuildException {
49	if(isJDK14OrHigher()) {
50	// maybe the right one; check vendor:
51	// by checking system properties:
52	Properties props = null;
53	try {
54	props = System.getProperties();
55	} catch (Exception e) {
56	throw new BuildException("unable to determine java vendor because could not access system properties!");
57	}
58	// this is supposed to be provided by all JVM's from time immemorial
59	String vendor = ((String)props.get("java.vendor")).toUpperCase(Locale.ENGLISH);
60	if(vendor.indexOf("IBM") >= 0){
61	// we're on an IBM 1.4; fiddle with the bootclasspath.
62	Path bcp = createBootclasspath();
63	String javaHome = System.getProperty("java.home");
64	StringBuffer bcpMember = new StringBuffer();
65	bcpMember.append(javaHome).append("/lib/charsets.jar:");
66	bcp.createPathElement().setPath(bcpMember.toString());
67	bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/core.jar:");
68	bcp.createPathElement().setPath(bcpMember.toString());
69	bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/graphics.jar:");
70	bcp.createPathElement().setPath(bcpMember.toString());
71	bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/javaws.jar:");
72	bcp.createPathElement().setPath(bcpMember.toString());
73	bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/jaws.jar:");
74	bcp.createPathElement().setPath(bcpMember.toString());
75	bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/security.jar:");
76	bcp.createPathElement().setPath(bcpMember.toString());
77	bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/server.jar:");
78	bcp.createPathElement().setPath(bcpMember.toString());
79	bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/ext/JawBridge.jar:");
80	bcp.createPathElement().setPath(bcpMember.toString());
81	bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/ext/gskikm.jar:");
82	bcp.createPathElement().setPath(bcpMember.toString());
83	bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/ext/ibmjceprovider.jar:");
84	bcp.createPathElement().setPath(bcpMember.toString());
85	bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/ext/indicim.jar:");
86	bcp.createPathElement().setPath(bcpMember.toString());
87	bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/ext/jaccess.jar:");
88	bcp.createPathElement().setPath(bcpMember.toString());
89	bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/ext/ldapsec.jar:");
90	bcp.createPathElement().setPath(bcpMember.toString());
91	bcpMember.replace(javaHome.length(), bcpMember.length(), "/lib/ext/oldcertpath.jar");
92	bcp.createPathElement().setPath(bcpMember.toString());
93	setBootclasspath(bcp);
94	}
95	// need to do special things for Sun too and also
96	// for Apple, HP and Blackdown: a Linux port of Sun Java
97	else if( (vendor.indexOf("SUN") >= 0) \|\|
98	(vendor.indexOf("BLACKDOWN") >= 0) \|\|
99	(vendor.indexOf("APPLE") >= 0) \|\|
100	(vendor.indexOf("HEWLETT-PACKARD") >= 0)) {
101	// we're on an SUN 1.4; fiddle with the bootclasspath.
102	// since we can't eviscerate XML-related info here,
103	// we must use the classpath
104	Path bcp = createBootclasspath();
105	Path clPath = getClasspath();
106	bcp.append(clPath);
107	String currBCP = (String)props.get("sun.boot.class.path");
108	Path currBCPath = new Path(null);
109	currBCPath.createPathElement().setPath(currBCP);
110	bcp.append(currBCPath);
111	setBootclasspath(bcp);
112	}
113	}
114	// now just do the normal thing:
115	super.execute();
116	}
117
118	/**
119	* Checks whether the JDK version is 1.4 or higher. If it's not
120	* JDK 1.4 we check whether we're on a future JDK by checking
121	* that we're not on JDKs 1.0, 1.1, 1.2 or 1.3. This check by
122	* exclusion should future proof this task from new versions of
123	* Ant which are aware of higher JDK versions.
124	*
125	* @return true if the JDK version is 1.4 or higher.
126	*/
127	private boolean isJDK14OrHigher() {
128	final String version = JavaEnvUtils.getJavaVersion();
129	return version.equals(JavaEnvUtils.JAVA_1_4) \|\|
130	(!version.equals(JavaEnvUtils.JAVA_1_3) &&
131	!version.equals(JavaEnvUtils.JAVA_1_2) &&
132	!version.equals(JavaEnvUtils.JAVA_1_1) &&
133	!version.equals(JavaEnvUtils.JAVA_1_0));
134	}
135	}