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6852856: javap changes to facilitate subclassing javap for variants

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Reviewed-by: mcimadamore
This commit is contained in:
Jonathan Gibbons 2009-06-19 11:40:47 -07:00
parent 3b51e6ae0d
commit b62ac9c58c
7 changed files with 183 additions and 59 deletions
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139
langtools/src/share/classes/com/sun/tools/javap/JavapTask.java
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@ -36,6 +36,7 @@ import java.io.StringWriter;
import java.io.Writer;
import java.security.DigestInputStream;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Arrays;
@ -298,21 +299,28 @@ public class JavapTask implements DisassemblerTool.DisassemblerTask, Messages {
};
JavapTask() {
public JavapTask() {
context = new Context();
context.put(Messages.class, this);
options = Options.instance(context);
attributeFactory = new Attribute.Factory();
}
JavapTask(Writer out,
public JavapTask(Writer out,
JavaFileManager fileManager,
DiagnosticListener<? super JavaFileObject> diagnosticListener,
Iterable<String> options,
Iterable<String> classes) {
DiagnosticListener<? super JavaFileObject> diagnosticListener) {
this();
this.log = getPrintWriterForWriter(out);
this.fileManager = fileManager;
this.diagnosticListener = diagnosticListener;
}
public JavapTask(Writer out,
JavaFileManager fileManager,
DiagnosticListener<? super JavaFileObject> diagnosticListener,
Iterable<String> options,
Iterable<String> classes) {
this(out, fileManager, diagnosticListener);
try {
handleOptions(options, false);
@ -553,29 +561,10 @@ public class JavapTask implements DisassemblerTool.DisassemblerTask, Messages {
continue;
}
}
Attribute.Factory attributeFactory = new Attribute.Factory();
attributeFactory.setCompat(options.compat);
attributeFactory.setJSR277(options.jsr277);
InputStream in = fo.openInputStream();
SizeInputStream sizeIn = null;
MessageDigest md = null;
if (options.sysInfo || options.verbose) {
md = MessageDigest.getInstance("MD5");
in = new DigestInputStream(in, md);
in = sizeIn = new SizeInputStream(in);
}
ClassFile cf = ClassFile.read(in, attributeFactory);
if (options.sysInfo || options.verbose) {
classWriter.setFile(fo.toUri());
classWriter.setLastModified(fo.getLastModified());
classWriter.setDigest("MD5", md.digest());
classWriter.setFileSize(sizeIn.size());
}
classWriter.write(cf);
write(read(fo));
} catch (ConstantPoolException e) {
diagnosticListener.report(createDiagnostic("err.bad.constant.pool", className, e.getLocalizedMessage()));
@ -606,6 +595,103 @@ public class JavapTask implements DisassemblerTool.DisassemblerTask, Messages {
return ok;
}
public static class ClassFileInfo {
ClassFileInfo(JavaFileObject fo, ClassFile cf, byte[] digest, int size) {
this.fo = fo;
this.cf = cf;
this.digest = digest;
this.size = size;
}
public final JavaFileObject fo;
public final ClassFile cf;
public final byte[] digest;
public final int size;
}
public ClassFileInfo read(JavaFileObject fo) throws IOException, ConstantPoolException {
InputStream in = fo.openInputStream();
try {
SizeInputStream sizeIn = null;
MessageDigest md = null;
if (options.sysInfo || options.verbose) {
try {
md = MessageDigest.getInstance("MD5");
} catch (NoSuchAlgorithmException ignore) {
}
in = new DigestInputStream(in, md);
in = sizeIn = new SizeInputStream(in);
}
ClassFile cf = ClassFile.read(in, attributeFactory);
byte[] digest = (md == null) ? null : md.digest();
int size = (sizeIn == null) ? -1 : sizeIn.size();
return new ClassFileInfo(fo, cf, digest, size);
} finally {
in.close();
}
}
public void write(ClassFileInfo info) {
ClassWriter classWriter = ClassWriter.instance(context);
if (options.sysInfo || options.verbose) {
classWriter.setFile(info.fo.toUri());
classWriter.setLastModified(info.fo.getLastModified());
classWriter.setDigest("MD5", info.digest);
classWriter.setFileSize(info.size);
}
classWriter.write(info.cf);
}
protected void setClassFile(ClassFile classFile) {
ClassWriter classWriter = ClassWriter.instance(context);
classWriter.setClassFile(classFile);
}
protected void setMethod(Method enclosingMethod) {
ClassWriter classWriter = ClassWriter.instance(context);
classWriter.setMethod(enclosingMethod);
}
protected void write(Attribute value) {
AttributeWriter attrWriter = AttributeWriter.instance(context);
ClassWriter classWriter = ClassWriter.instance(context);
ClassFile cf = classWriter.getClassFile();
attrWriter.write(cf, value, cf.constant_pool);
}
protected void write(Attributes attrs) {
AttributeWriter attrWriter = AttributeWriter.instance(context);
ClassWriter classWriter = ClassWriter.instance(context);
ClassFile cf = classWriter.getClassFile();
attrWriter.write(cf, attrs, cf.constant_pool);
}
protected void write(ConstantPool constant_pool) {
ConstantWriter constantWriter = ConstantWriter.instance(context);
constantWriter.writeConstantPool(constant_pool);
}
protected void write(ConstantPool constant_pool, int value) {
ConstantWriter constantWriter = ConstantWriter.instance(context);
constantWriter.write(value);
}
protected void write(ConstantPool.CPInfo value) {
ConstantWriter constantWriter = ConstantWriter.instance(context);
constantWriter.println(value);
}
protected void write(Field value) {
ClassWriter classWriter = ClassWriter.instance(context);
classWriter.writeField(value);
}
protected void write(Method value) {
ClassWriter classWriter = ClassWriter.instance(context);
classWriter.writeMethod(value);
}
private JavaFileManager getDefaultFileManager(final DiagnosticListener<? super JavaFileObject> dl, PrintWriter log) {
return JavapFileManager.create(dl, log, options);
}
@ -735,7 +821,7 @@ public class JavapTask implements DisassemblerTool.DisassemblerTask, Messages {
}
}
Context context;
protected Context context;
JavaFileManager fileManager;
PrintWriter log;
DiagnosticListener<? super JavaFileObject> diagnosticListener;
@ -744,6 +830,7 @@ public class JavapTask implements DisassemblerTool.DisassemblerTask, Messages {
//ResourceBundle bundle;
Locale task_locale;
Map<Locale, ResourceBundle> bundles;
protected Attribute.Factory attributeFactory;
private static final String progname = "javap";