Mercurial > hg > truffle
diff graal/com.oracle.jvmci.options.processor/src/com/oracle/jvmci/options/processor/GraalJars.java @ 21562:47bebae7454f
Merge.
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Thu, 28 May 2015 21:58:33 +0200 |
parents | graal/com.oracle.graal.options.processor/src/com/oracle/graal/options/processor/GraalJars.java@28cbfacd0518 |
children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.jvmci.options.processor/src/com/oracle/jvmci/options/processor/GraalJars.java Thu May 28 21:58:33 2015 +0200 @@ -0,0 +1,63 @@ +/* + * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package com.oracle.jvmci.options.processor; + +import java.io.*; +import java.util.*; +import java.util.stream.*; +import java.util.zip.*; + +public class GraalJars implements Iterable<ZipEntry> { + private final List<ZipFile> jars = new ArrayList<>(2); + + public GraalJars() { + String classPath = System.getProperty("java.class.path"); + for (String e : classPath.split(File.pathSeparator)) { + if (e.endsWith(File.separatorChar + "graal.jar") || e.endsWith(File.separatorChar + "graal-truffle.jar")) { + try { + jars.add(new ZipFile(e)); + } catch (IOException ioe) { + throw new InternalError(ioe); + } + } + } + if (jars.size() != 2) { + throw new InternalError("Could not find graal.jar or graal-truffle.jar on class path: " + classPath); + } + } + + public Iterator<ZipEntry> iterator() { + Stream<ZipEntry> entries = jars.stream().flatMap(ZipFile::stream); + return entries.iterator(); + } + + public InputStream getInputStream(String classFilePath) throws IOException { + for (ZipFile jar : jars) { + ZipEntry entry = jar.getEntry(classFilePath); + if (entry != null) { + return jar.getInputStream(entry); + } + } + return null; + } +}