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JBoss Marshalling Serial Implementation
/*
* JBoss, Home of Professional Open Source.
* Copyright 2014 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* 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.jboss.marshalling.serial;
import org.jboss.marshalling.MarshallerObjectOutputStream;
import org.jboss.marshalling.reflect.SerializableClass;
import org.jboss.marshalling.reflect.SerializableField;
import org.jboss.marshalling.util.FieldPutter;
import org.jboss.marshalling.util.BooleanFieldPutter;
import org.jboss.marshalling.util.ByteFieldPutter;
import org.jboss.marshalling.util.CharFieldPutter;
import org.jboss.marshalling.util.DoubleFieldPutter;
import org.jboss.marshalling.util.FloatFieldPutter;
import org.jboss.marshalling.util.IntFieldPutter;
import org.jboss.marshalling.util.LongFieldPutter;
import org.jboss.marshalling.util.ObjectFieldPutter;
import org.jboss.marshalling.util.ShortFieldPutter;
import org.jboss.marshalling.util.Kind;
import java.io.IOException;
import java.io.ObjectOutput;
import java.util.Map;
import java.util.TreeMap;
/**
*
*/
final class SerialObjectOutputStream extends MarshallerObjectOutputStream {
protected enum State {
OFF,
NEW,
FIELDS,
ON,
;
}
private final SerialMarshaller serialMarshaller;
private State state = State.OFF;
private Object currentObject;
private SerializableClass currentSerializableClass;
private Map currentFieldMap;
protected SerialObjectOutputStream(final SerialMarshaller serialMarshaller, final BlockMarshaller blockMarshaller) throws IOException, SecurityException {
super(blockMarshaller);
this.serialMarshaller = serialMarshaller;
}
State saveState() {
try {
return state;
} finally {
state = State.NEW;
}
}
State restoreState(final State state) {
try {
return this.state;
} finally {
this.state = state;
}
}
Object saveCurrentObject(final Object currentObject) {
try {
return this.currentObject;
} finally {
this.currentObject = currentObject;
}
}
void setCurrentObject(final Object currentObject) {
this.currentObject = currentObject;
}
Map saveCurrentFieldMap() {
return currentFieldMap;
}
void setCurrentFieldMap(Map map) {
currentFieldMap = map;
}
SerializableClass saveCurrentSerializableClass(final SerializableClass currentSerializableClass) {
try {
return this.currentSerializableClass;
} finally {
this.currentSerializableClass = currentSerializableClass;
}
}
void setCurrentSerializableClass(final SerializableClass currentSerializableClass) {
this.currentSerializableClass = currentSerializableClass;
}
public void writeFields() throws IOException {
if (state == State.FIELDS) {
for (FieldPutter putter : currentFieldMap.values()) {
if (putter.getKind() != Kind.OBJECT) {
putter.write(serialMarshaller);
}
}
for (FieldPutter putter : currentFieldMap.values()) {
if (putter.getKind() == Kind.OBJECT) {
putter.write(serialMarshaller);
}
}
} else {
throw new IllegalStateException("fields may not be written now");
}
state = State.ON;
}
public PutField putFields() throws IOException {
if (state == State.NEW) {
final Map map = new TreeMap();
currentFieldMap = map;
for (SerializableField serializableField : currentSerializableClass.getFields()) {
final FieldPutter putter;
switch (serializableField.getKind()) {
case BOOLEAN: {
putter = new BooleanFieldPutter();
break;
}
case BYTE: {
putter = new ByteFieldPutter();
break;
}
case CHAR: {
putter = new CharFieldPutter();
break;
}
case DOUBLE: {
putter = new DoubleFieldPutter();
break;
}
case FLOAT: {
putter = new FloatFieldPutter();
break;
}
case INT: {
putter = new IntFieldPutter();
break;
}
case LONG: {
putter = new LongFieldPutter();
break;
}
case OBJECT: {
putter = new ObjectFieldPutter(serializableField.isUnshared());
break;
}
case SHORT: {
putter = new ShortFieldPutter();
break;
}
default: {
continue;
}
}
map.put(serializableField.getName(), putter);
}
state = State.FIELDS;
return new PutField() {
public void put(final String name, final boolean val) {
find(name).setBoolean(val);
}
public void put(final String name, final byte val) {
find(name).setByte(val);
}
public void put(final String name, final char val) {
find(name).setChar(val);
}
public void put(final String name, final short val) {
find(name).setShort(val);
}
public void put(final String name, final int val) {
find(name).setInt(val);
}
public void put(final String name, final long val) {
find(name).setLong(val);
}
public void put(final String name, final float val) {
find(name).setFloat(val);
}
public void put(final String name, final double val) {
find(name).setDouble(val);
}
public void put(final String name, final Object val) {
find(name).setObject(val);
}
@Deprecated
public void write(final ObjectOutput out) throws IOException {
throw new UnsupportedOperationException("write(ObjectOutput)");
}
private FieldPutter find(final String name) {
final FieldPutter putter = map.get(name);
if (putter == null) {
throw new IllegalArgumentException("No field named '" + name + "' found");
}
return putter;
}
};
} else if (state == State.FIELDS) {
final Map map = currentFieldMap;
return new PutField() {
public void put(final String name, final boolean val) {
find(name).setBoolean(val);
}
public void put(final String name, final byte val) {
find(name).setByte(val);
}
public void put(final String name, final char val) {
find(name).setChar(val);
}
public void put(final String name, final short val) {
find(name).setShort(val);
}
public void put(final String name, final int val) {
find(name).setInt(val);
}
public void put(final String name, final long val) {
find(name).setLong(val);
}
public void put(final String name, final float val) {
find(name).setFloat(val);
}
public void put(final String name, final double val) {
find(name).setDouble(val);
}
public void put(final String name, final Object val) {
find(name).setObject(val);
}
@Deprecated
public void write(final ObjectOutput out) throws IOException {
throw new UnsupportedOperationException("write(ObjectOutput)");
}
private FieldPutter find(final String name) {
final FieldPutter putter = map.get(name);
if (putter == null) {
throw new IllegalArgumentException("No field named '" + name + "' found");
}
return putter;
}
};
} else {
throw new IllegalStateException("putFields() may not be called now");
}
}
public void defaultWriteObject() throws IOException {
if (state == State.NEW || state == State.FIELDS) {
serialMarshaller.doWriteFields(currentSerializableClass, currentObject);
} else {
throw new IllegalStateException("fields may not be written now");
}
state = State.ON;
}
}