/*
* ====================================================================
* Copyright (c) 2004-2009 TMate Software Ltd. All rights reserved.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://svnkit.com/license.html
* If newer versions of this license are posted there, you may use a
* newer version instead, at your option.
* ====================================================================
*/
package org.tmatesoft.svn.core.internal.wc.admin;
import java.util.Collection;
import java.util.Iterator;
import java.util.TreeSet;
import org.tmatesoft.svn.core.SVNException;
import org.tmatesoft.svn.core.SVNProperties;
import org.tmatesoft.svn.core.SVNPropertyValue;
/**
* @version 1.3
* @author TMate Software Ltd.
*/
public abstract class SVNVersionedProperties {
private SVNProperties myProperties;
private boolean myIsModified;
protected SVNVersionedProperties(SVNProperties props) {
myProperties = props;
myIsModified = false;
}
public abstract boolean containsProperty(String name) throws SVNException;
public abstract SVNPropertyValue getPropertyValue(String name) throws SVNException;
public String getStringPropertyValue(String name) throws SVNException {
SVNPropertyValue value = getPropertyValue(name);
return value == null ? null : value.getString();
}
public boolean isModified() {
return myIsModified;
}
protected void setModified(boolean modified) {
myIsModified = modified;
}
public boolean isEmpty() throws SVNException {
SVNProperties props = loadProperties();
return props == null || props.isEmpty();
}
public Collection getPropertyNames(Collection target) throws SVNException {
SVNProperties props = loadProperties();
target = target == null ? new TreeSet() : target;
if (isEmpty()) {
return target;
}
for (Iterator names = props.nameSet().iterator(); names.hasNext();) {
target.add(names.next());
}
return target;
}
public void setPropertyValue(String name, SVNPropertyValue value) throws SVNException {
SVNProperties props = loadProperties();
if (value != null) {
props.put(name, value);
} else {
props.remove(name);
}
myIsModified = true;
}
public SVNVersionedProperties compareTo(SVNVersionedProperties properties) throws SVNException {
SVNProperties theseProps = loadProperties();
if (theseProps == null) {
return wrap(new SVNProperties());
}
return wrap(theseProps.compareTo(properties.loadProperties()));
}
public void copyTo(SVNVersionedProperties destination) throws SVNException {
SVNProperties props = loadProperties();
if (isEmpty()) {
destination.removeAll();
} else {
destination.put(props);
}
}
public void removeAll() throws SVNException {
SVNProperties props = loadProperties();
if (!isEmpty()) {
props.clear();
myIsModified = true;
}
}
public boolean equals(SVNVersionedProperties props) throws SVNException {
return compareTo(props).isEmpty();
}
public SVNProperties asMap() throws SVNException {
return loadProperties() != null ? new SVNProperties(loadProperties()) : new SVNProperties();
}
protected void put(SVNProperties props) throws SVNException {
SVNProperties thisProps = loadProperties();
thisProps.clear();
thisProps.putAll(props);
myIsModified = true;
}
protected SVNProperties getProperties() {
return myProperties;
}
protected void setPropertiesMap(SVNProperties props) {
myProperties = props;
}
protected abstract SVNVersionedProperties wrap(SVNProperties properties);
protected abstract SVNProperties loadProperties() throws SVNException;
}