diff options
author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
---|---|---|
committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/java/rmi/server/UnicastRemoteCall.java | |
download | cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.bz2 cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.xz |
obtained gcc-4.6.4.tar.bz2 from upstream website;upstream
verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.
downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.
if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
Diffstat (limited to 'libjava/classpath/gnu/java/rmi/server/UnicastRemoteCall.java')
-rw-r--r-- | libjava/classpath/gnu/java/rmi/server/UnicastRemoteCall.java | 525 |
1 files changed, 525 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/java/rmi/server/UnicastRemoteCall.java b/libjava/classpath/gnu/java/rmi/server/UnicastRemoteCall.java new file mode 100644 index 000000000..d0d77304c --- /dev/null +++ b/libjava/classpath/gnu/java/rmi/server/UnicastRemoteCall.java @@ -0,0 +1,525 @@ +/* UnicastRemoteCall.java + Copyright (c) 1996, 1997, 1998, 1999, 2002, 2004, 2005 + Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath 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 for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package gnu.java.rmi.server; + +import java.io.DataInputStream; +import java.io.DataOutputStream; +import java.io.IOException; +import java.io.ObjectInput; +import java.io.ObjectOutput; +import java.io.StreamCorruptedException; +import java.rmi.MarshalException; +import java.rmi.RemoteException; +import java.rmi.UnmarshalException; +import java.rmi.server.ObjID; +import java.rmi.server.RemoteCall; +import java.rmi.server.UID; +import java.util.Vector; + +public class UnicastRemoteCall + implements RemoteCall, ProtocolConstants +{ + + private UnicastConnection conn; + private Object result; + private Object object; + private int opnum; + private long hash; + // These are package-private due to inner class access. + Vector vec; + int ptr; + private ObjID objid; + + private ObjectOutput oout; + private ObjectInput oin; + + /** + * Incoming call. + */ + UnicastRemoteCall(UnicastConnection conn) + { + this.conn = conn; + } + + /** + * Outgoing call. + */ + UnicastRemoteCall(UnicastConnection conn, ObjID objid, int opnum, long hash) + throws RemoteException + { + this.conn = conn; + this.opnum = opnum; + this.hash = hash; + this.objid = objid; + } + + UnicastConnection getConnection() + { + return conn; + } + + public ObjectOutput getOutputStream() throws IOException + { + if (vec == null) + vec = new Vector(); + return (new DummyObjectOutputStream()); + } + + public void releaseOutputStream() throws IOException + { + if (vec != null) + { + oout = conn.getObjectOutputStream(); + + for (int i = 0; i < vec.size(); i += 2) + { + boolean primitive = ((Boolean)vec.elementAt(i)).booleanValue(); + Object data = vec.elementAt(i+1); + + // No type, this is + if (!primitive) + oout.writeObject(data); + else + { + if (data instanceof Boolean) + oout.writeBoolean(((Boolean)data).booleanValue()); + else if (data instanceof Character) + oout.writeChar(((Character)data).charValue()); + else if (data instanceof Byte) + oout.writeByte(((Byte)data).byteValue()); + else if (data instanceof Short) + oout.writeShort(((Short)data).shortValue()); + else if (data instanceof Integer) + oout.writeInt(((Integer)data).intValue()); + else if (data instanceof Long) + oout.writeLong(((Long)data).longValue()); + } + } + vec = null; + } + if(oout != null) + oout.flush(); + } + + /** + * + * (re)starts ObjectInputStream + * + */ + public ObjectInput startInputStream() throws IOException + { + if (conn != null) { + return (oin = conn.startObjectInputStream()); + } else { + return getInputStream(); // dummy Input Stream + } + + } + + public ObjectInput getInputStream() throws IOException + { + if (conn != null) + { + if(oin == null) + return (oin = conn.getObjectInputStream()); + else + return oin; + } + else + { + ptr = 0; + return (new DummyObjectInputStream()); + } + } + + public void releaseInputStream() throws IOException + { + // Does nothing. + } + + public ObjectOutput getResultStream(boolean success) + throws IOException, StreamCorruptedException + { + vec = new Vector(); + return new DummyObjectOutputStream(); + } + + public void executeCall() throws Exception + { + byte returncode; + ObjectInput oin; + + // signal the call when constructing + try + { + DataOutputStream dout = conn.getDataOutputStream(); + dout.write(MESSAGE_CALL); + + oout = conn.startObjectOutputStream(); // (re)start ObjectOutputStream + objid.write(oout); + oout.writeInt(opnum); + oout.writeLong(hash); + } + catch(IOException ex) + { + throw new MarshalException("Try to write header but failed.", ex); + } + + try + { + releaseOutputStream(); + DataInputStream din = conn.getDataInputStream(); + if (din.readByte() != MESSAGE_CALL_ACK) + throw new RemoteException("Call not acked"); + + oin = startInputStream(); + returncode = oin.readByte(); + UID.read(oin); + } + catch(IOException ex) + { + throw new UnmarshalException("Try to read header but failed:", ex); + } + + //check return code + switch(returncode) + { + case RETURN_ACK: //it's ok + return; + case RETURN_NACK: + Object returnobj; + try + { + returnobj = oin.readObject(); + } + catch(Exception ex2) + { + throw new UnmarshalException + ("Try to read exception object but failed", ex2); + } + + if(!(returnobj instanceof Exception)) + throw new UnmarshalException("Should be Exception type here: " + + returnobj); + throw (Exception)returnobj; + + default: + throw new UnmarshalException("Invalid return code"); + } + } + + public void done() throws IOException + { + // conn.disconnect(); + } + + boolean isReturnValue() + { + return vec.size() > 0; + } + + Object returnValue() + { + // This is not the first one (Boolean) but the second. + return vec.elementAt(1); + } + + Object[] getArguments() + { + return vec.toArray(); + } + + Object getObject() + { + return object; + } + + int getOpnum() + { + return opnum; + } + + long getHash() + { + return hash; + } + + void setReturnValue(Object obj) + { + vec.removeAllElements(); + vec.addElement(obj); + } + + /** + * Dummy object output class. + */ + private class DummyObjectOutputStream implements ObjectOutput + { + /** + * Non-private constructor to reduce bytecode emitted. + */ + DummyObjectOutputStream() + { + } + + public void writeBoolean(boolean v) throws IOException + { + vec.addElement(Boolean.TRUE); + vec.addElement(Boolean.valueOf(v)); + } + + public void writeByte(int v) throws IOException + { + vec.addElement(Boolean.TRUE); + vec.addElement(new Byte((byte) v)); + } + + public void writeChar(int v) throws IOException + { + vec.addElement(Boolean.TRUE); + vec.addElement(new Character((char) v)); + } + + public void writeDouble(double v) throws IOException + { + vec.addElement(Boolean.TRUE); + vec.addElement(new Double(v)); + } + + public void writeFloat(float v) throws IOException + { + vec.addElement(Boolean.TRUE); + vec.addElement(new Float(v)); + } + + public void writeInt(int v) throws IOException + { + vec.addElement(Boolean.TRUE); + vec.addElement(new Integer(v)); + } + + public void writeLong(long v) throws IOException + { + vec.addElement(Boolean.TRUE); + vec.addElement(new Long(v)); + } + + public void writeShort(int v) throws IOException + { + vec.addElement(Boolean.TRUE); + vec.addElement(new Short((short) v)); + } + + public void writeObject(Object obj) throws IOException + { + vec.addElement(Boolean.FALSE); + vec.addElement(obj); + } + + public void write(byte b[]) throws IOException + { + throw new IOException("not required"); + } + + public void write(byte b[], int off, int len) throws IOException + { + throw new IOException("not required"); + } + + public void write(int b) throws IOException + { + throw new IOException("not required"); + } + + public void writeBytes(String s) throws IOException + { + throw new IOException("not required"); + } + + public void writeChars(String s) throws IOException + { + throw new IOException("not required"); + } + + public void writeUTF(String str) throws IOException + { + throw new IOException("not required"); + } + + public void flush() throws IOException + { + } + + public void close() throws IOException + { + } + } // class DummyObjectOutputStream + + /** + * Dummy object input class. + */ + private class DummyObjectInputStream implements ObjectInput + { + /** + * Non-private constructor to reduce bytecode emitted. + */ + DummyObjectInputStream() + { + } + + public boolean readBoolean() throws IOException + { + Object obj = vec.elementAt(ptr++); + return ((Boolean) obj).booleanValue(); + } + + public byte readByte() throws IOException + { + Object obj = vec.elementAt(ptr++); + return ((Byte) obj).byteValue(); + } + + public char readChar() throws IOException + { + Object obj = vec.elementAt(ptr++); + return ((Character) obj).charValue(); + } + + public double readDouble() throws IOException + { + Object obj = vec.elementAt(ptr++); + return ((Double) obj).doubleValue(); + } + + public float readFloat() throws IOException + { + Object obj = vec.elementAt(ptr++); + return ((Float) obj).floatValue(); + } + + public int readInt() throws IOException + { + Object obj = vec.elementAt(ptr++); + return ((Integer) obj).intValue(); + } + + public long readLong() throws IOException + { + Object obj = vec.elementAt(ptr++); + return ((Long) obj).longValue(); + } + + public short readShort() throws IOException + { + Object obj = vec.elementAt(ptr++); + return ((Short) obj).shortValue(); + } + + public Object readObject() throws IOException + { + return vec.elementAt(ptr++); + } + + public int read(byte b[]) throws IOException + { + throw new IOException("not required"); + } + + public int read(byte b[], int off, int len) throws IOException + { + throw new IOException("not required"); + } + + public int read() throws IOException + { + throw new IOException("not required"); + } + + public long skip(long n) throws IOException + { + throw new IOException("not required"); + } + + public int available() throws IOException + { + throw new IOException("not required"); + } + + public void readFully(byte b[]) throws IOException + { + throw new IOException("not required"); + } + + public void readFully(byte b[], int off, int len) throws IOException + { + throw new IOException("not required"); + } + + public String readLine() throws IOException + { + throw new IOException("not required"); + } + + public String readUTF() throws IOException + { + throw new IOException("not required"); + } + + public int readUnsignedByte() throws IOException + { + throw new IOException("not required"); + } + + public int readUnsignedShort() throws IOException + { + throw new IOException("not required"); + } + + public int skipBytes(int n) throws IOException + { + throw new IOException("not required"); + } + + public void close() throws IOException + { + } + } // class DummyObjectInputStream + +} |