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/****************************************************************************
* Copyright (c) 2008 Mustafa K. Isik and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Mustafa K. Isik - initial API and implementation
*****************************************************************************/
package org.eclipse.ecf.docshare.cola;
import java.util.LinkedList;
import java.util.List;
import org.eclipse.ecf.core.util.Trace;
import org.eclipse.ecf.docshare.messages.UpdateMessage;
import org.eclipse.ecf.internal.docshare.Activator;
import org.eclipse.ecf.internal.docshare.DocshareDebugOptions;
public class ColaUpdateMessage extends UpdateMessage {
private static final long serialVersionUID = 2038025022180647210L;
// TODO encapsulate in a new ColaOpOriginationState and re-implement equals,
// hashCode, i.e. make comparable
private final long localOperationsCount;
private long remoteOperationsCount;
private final TransformationStrategy trafoStrat;
private boolean splitUp;
private List splitUpRepresentation;
public ColaUpdateMessage(UpdateMessage msg, long localOperationsCount, long remoteOperationsCount) {
super(msg.getOffset(), msg.getLengthOfReplacedText(), msg.getText());
this.localOperationsCount = localOperationsCount;
this.remoteOperationsCount = remoteOperationsCount;
this.splitUp = false;
this.splitUpRepresentation = new LinkedList();
if (super.getLengthOfReplacedText() == 0) {
// this is neither a replacement, nor a deletion
trafoStrat = ColaInsertion.getInstance();
} else {
if (super.getText().length() == 0) {
// something has been replaced, nothing inserted, must be a
// deletion
trafoStrat = ColaDeletion.getInstance();
} else {
// something has been replaced with some new input, has to be a
// replacement op
trafoStrat = ColaReplacement.getInstance();
}
}
}
public boolean isInsertion() {
return (this.trafoStrat instanceof ColaInsertion);
}
public boolean isDeletion() {
return (this.trafoStrat instanceof ColaDeletion);
}
public long getLocalOperationsCount() {
return this.localOperationsCount;
}
public long getRemoteOperationsCount() {
return this.remoteOperationsCount;
}
public ColaUpdateMessage transformAgainst(ColaUpdateMessage localMsg, boolean localMsgHighPrio) {
Trace.entering(Activator.PLUGIN_ID, DocshareDebugOptions.METHODS_ENTERING, this.getClass(), "transformAgainst", localMsg); //$NON-NLS-1$
ColaUpdateMessage transformedMsg = trafoStrat.getOperationalTransform(this, localMsg, localMsgHighPrio);
Trace.entering(Activator.PLUGIN_ID, DocshareDebugOptions.METHODS_EXITING, this.getClass(), "transformAgainst", transformedMsg); //$NON-NLS-1$
return transformedMsg;
}
public String toString() {
StringBuffer buf = new StringBuffer("ColaUpdateMessage["); //$NON-NLS-1$
buf.append("text=").append(getText()).append(";offset=").append(getOffset()); //$NON-NLS-1$ //$NON-NLS-2$
buf.append(";length=").append(getLengthOfReplacedText()).append("]"); //$NON-NLS-1$ //$NON-NLS-2$
buf.append(";operationsCount[local=").append(getLocalOperationsCount()); //$NON-NLS-1$
buf.append(";remote=").append(getRemoteOperationsCount()).append("]]"); //$NON-NLS-1$//$NON-NLS-2$
return buf.toString();
}
public void setSplitUp(boolean toBeSplitUp) {
this.splitUp = toBeSplitUp;
}
public boolean isSplitUp() {
return splitUp;
}
public void setSplitUpRepresentation(List splitUpRepresentation) {
this.splitUpRepresentation = splitUpRepresentation;
}
public List getSplitUpRepresentation() {
return splitUpRepresentation;
}
public void addToSplitUpRepresentation(ColaUpdateMessage splitUpRepresentationPart) {
this.splitUpRepresentation.add(splitUpRepresentationPart);
}
}
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