/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.activemq.command;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import org.apache.activemq.state.CommandVisitor;
import org.apache.activemq.util.ByteArrayInputStream;
import org.apache.activemq.util.ByteArrayOutputStream;
import org.apache.activemq.util.ByteSequence;
import org.apache.activemq.util.MarshallingSupport;
import org.apache.activemq.wireformat.WireFormat;
/**
* @openwire:marshaller code="1"
* @version $Revision$
*/
public class WireFormatInfo implements Command, MarshallAware {
public static final byte DATA_STRUCTURE_TYPE = CommandTypes.WIREFORMAT_INFO;
private static final int MAX_PROPERTY_SIZE = 1024 * 4;
private static final byte MAGIC[] = new byte[] {'A', 'c', 't', 'i', 'v', 'e', 'M', 'Q'};
protected byte magic[] = MAGIC;
protected int version;
protected ByteSequence marshalledProperties;
protected transient Map<String, Object> properties;
private transient Endpoint from;
private transient Endpoint to;
public byte getDataStructureType() {
return DATA_STRUCTURE_TYPE;
}
public boolean isWireFormatInfo() {
return true;
}
public boolean isMarshallAware() {
return true;
}
/**
* @openwire:property version=1 size=8 testSize=-1
*/
public byte[] getMagic() {
return magic;
}
public void setMagic(byte[] magic) {
this.magic = magic;
}
/**
* @openwire:property version=1
*/
public int getVersion() {
return version;
}
public void setVersion(int version) {
this.version = version;
}
/**
* @openwire:property version=1
*/
public ByteSequence getMarshalledProperties() {
return marshalledProperties;
}
public void setMarshalledProperties(ByteSequence marshalledProperties) {
this.marshalledProperties = marshalledProperties;
}
/**
* The endpoint within the transport where this message came from.
*/
public Endpoint getFrom() {
return from;
}
public void setFrom(Endpoint from) {
this.from = from;
}
/**
* The endpoint within the transport where this message is going to - null
* means all endpoints.
*/
public Endpoint getTo() {
return to;
}
public void setTo(Endpoint to) {
this.to = to;
}
// ////////////////////
//
// Implementation Methods.
//
// ////////////////////
public Object getProperty(String name) throws IOException {
if (properties == null) {
if (marshalledProperties == null) {
return null;
}
properties = unmarsallProperties(marshalledProperties);
}
return properties.get(name);
}
@SuppressWarnings("unchecked")
public Map<String, Object> getProperties() throws IOException {
if (properties == null) {
if (marshalledProperties == null) {
return Collections.EMPTY_MAP;
}
properties = unmarsallProperties(marshalledProperties);
}
return Collections.unmodifiableMap(properties);
}
public void clearProperties() {
marshalledProperties = null;
properties = null;
}
public void setProperty(String name, Object value) throws IOException {
lazyCreateProperties();
properties.put(name, value);
}
protected void lazyCreateProperties() throws IOException {
if (properties == null) {
if (marshalledProperties == null) {
properties = new HashMap<String, Object>();
} else {
properties = unmarsallProperties(marshalledProperties);
marshalledProperties = null;
}
}
}
private Map<String, Object> unmarsallProperties(ByteSequence marshalledProperties) throws IOException {
return MarshallingSupport.unmarshalPrimitiveMap(new DataInputStream(new ByteArrayInputStream(marshalledProperties)), MAX_PROPERTY_SIZE);
}
public void beforeMarshall(WireFormat wireFormat) throws IOException {
// Need to marshal the properties.
if (marshalledProperties == null && properties != null) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
DataOutputStream os = new DataOutputStream(baos);
MarshallingSupport.marshalPrimitiveMap(properties, os);
os.close();
marshalledProperties = baos.toByteSequence();
}
}
public void afterMarshall(WireFormat wireFormat) throws IOException {
}
public void beforeUnmarshall(WireFormat wireFormat) throws IOException {
}
public void afterUnmarshall(WireFormat wireFormat) throws IOException {
}
public boolean isValid() {
return magic != null && Arrays.equals(magic, MAGIC);
}
public void setResponseRequired(boolean responseRequired) {
}
/**
* @throws IOException
*/
public boolean isCacheEnabled() throws IOException {
return Boolean.TRUE == getProperty("CacheEnabled");
}
public void setCacheEnabled(boolean cacheEnabled) throws IOException {
setProperty("CacheEnabled", cacheEnabled ? Boolean.TRUE : Boolean.FALSE);
}
/**
* @throws IOException
*/
public boolean isStackTraceEnabled() throws IOException {
return Boolean.TRUE == getProperty("StackTraceEnabled");
}
public void setStackTraceEnabled(boolean stackTraceEnabled) throws IOException {
setProperty("StackTraceEnabled", stackTraceEnabled ? Boolean.TRUE : Boolean.FALSE);
}
/**
* @throws IOException
*/
public boolean isTcpNoDelayEnabled() throws IOException {
return Boolean.TRUE == getProperty("TcpNoDelayEnabled");
}
public void setTcpNoDelayEnabled(boolean tcpNoDelayEnabled) throws IOException {
setProperty("TcpNoDelayEnabled", tcpNoDelayEnabled ? Boolean.TRUE : Boolean.FALSE);
}
/**
* @throws IOException
*/
public boolean isSizePrefixDisabled() throws IOException {
return Boolean.TRUE == getProperty("SizePrefixDisabled");
}
public void setSizePrefixDisabled(boolean prefixPacketSize) throws IOException {
setProperty("SizePrefixDisabled", prefixPacketSize ? Boolean.TRUE : Boolean.FALSE);
}
/**
* @throws IOException
*/
public boolean isTightEncodingEnabled() throws IOException {
return Boolean.TRUE == getProperty("TightEncodingEnabled");
}
public void setTightEncodingEnabled(boolean tightEncodingEnabled) throws IOException {
setProperty("TightEncodingEnabled", tightEncodingEnabled ? Boolean.TRUE : Boolean.FALSE);
}
/**
* @throws IOException
*/
public long getMaxInactivityDuration() throws IOException {
Long l = (Long)getProperty("MaxInactivityDuration");
return l == null ? 0 : l.longValue();
}
public void seMaxInactivityDuration(long maxInactivityDuration) throws IOException {
setProperty("MaxInactivityDuration", new Long(maxInactivityDuration));
}
/**
* @throws IOException
*/
public int getCacheSize() throws IOException {
Integer i = (Integer)getProperty("CacheSize");
return i == null ? 0 : i.intValue();
}
public void setCacheSize(int cacheSize) throws IOException {
setProperty("CacheSize", new Integer(cacheSize));
}
public Response visit(CommandVisitor visitor) throws Exception {
return visitor.processWireFormat(this);
}
public String toString() {
Map<String, Object> p = null;
try {
p = getProperties();
} catch (IOException ignore) {
}
return "WireFormatInfo { version=" + version + ", properties=" + p + ", magic=" + toString(magic) + "}";
}
private String toString(byte[] data) {
StringBuffer sb = new StringBuffer();
sb.append('[');
for (int i = 0; i < data.length; i++) {
if (i != 0) {
sb.append(',');
}
sb.append((char)data[i]);
}
sb.append(']');
return sb.toString();
}
// /////////////////////////////////////////////////////////////
//
// This are not implemented.
//
// /////////////////////////////////////////////////////////////
public void setCommandId(int value) {
}
public int getCommandId() {
return 0;
}
public boolean isResponseRequired() {
return false;
}
public boolean isResponse() {
return false;
}
public boolean isBrokerInfo() {
return false;
}
public boolean isMessageDispatch() {
return false;
}
public boolean isMessage() {
return false;
}
public boolean isMessageAck() {
return false;
}
public boolean isMessageDispatchNotification() {
return false;
}
public boolean isShutdownInfo() {
return false;
}
public void setCachedMarshalledForm(WireFormat wireFormat, ByteSequence data) {
}
public ByteSequence getCachedMarshalledForm(WireFormat wireFormat) {
return null;
}
}