/*
* Created on Aug 23, 2008
*
* 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.
*
* Copyright @2008-2013 the original author or authors.
*/
package org.fest.swing.driver;
import static org.fest.util.Lists.newArrayList;
import static org.fest.util.Strings.quote;
import java.util.List;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import javax.swing.JTree;
import javax.swing.tree.TreeModel;
import javax.swing.tree.TreePath;
import org.fest.swing.annotation.RunsInCurrentThread;
import org.fest.swing.cell.JTreeCellReader;
import org.fest.swing.exception.LocationUnavailableException;
/**
* Lookup of {@code TreePath}s which text matches the given one.
*
* @author Alex Ruiz
*/
class JTreePathFinder {
// TODO TEST
private static final String SEPARATOR = "/";
private JTreeCellReader cellReader;
private String separator;
JTreePathFinder() {
replaceCellReader(new BasicJTreeCellReader());
replaceSeparator(SEPARATOR);
}
@RunsInCurrentThread
@Nonnull TreePath findMatchingPath(@Nonnull JTree tree, @Nonnull String path) {
String[] pathStrings = splitPath(path);
TreeModel model = tree.getModel();
List<Object> newPathValues = newArrayList();
Object node = model.getRoot();
int pathElementCount = pathStrings.length;
for (int stringIndex = 0; stringIndex < pathElementCount; stringIndex++) {
String pathString = pathStrings[stringIndex];
Object match = null;
if (stringIndex == 0 && tree.isRootVisible()) {
if (!pathString.equals(value(tree, node))) {
throw pathNotFound(path);
}
newPathValues.add(node);
continue;
}
int childCount = model.getChildCount(node);
for (int childIndex = 0; childIndex < childCount; childIndex++) {
Object child = model.getChild(node, childIndex);
if (pathString.equals(value(tree, child))) {
if (match != null) {
throw multipleMatchingNodes(pathString, value(tree, node));
}
match = child;
}
}
if (match == null) {
throw pathNotFound(path);
}
newPathValues.add(match);
node = match;
}
return new TreePath(newPathValues.toArray());
}
private @Nonnull LocationUnavailableException pathNotFound(@Nonnull String path) {
throw new LocationUnavailableException(String.format("Unable to find path %s", quote(path)));
}
private @Nonnull String[] splitPath(@Nonnull String path) {
List<String> result = newArrayList();
int separatorSize = separator.length();
int index = 0;
int pathSize = path.length();
while (index < pathSize) {
int separatorPosition = path.indexOf(separator, index);
if (separatorPosition == -1) {
separatorPosition = pathSize;
}
result.add(path.substring(index, separatorPosition));
index = separatorPosition + separatorSize;
}
return result.toArray(new String[result.size()]);
}
private @Nonnull LocationUnavailableException multipleMatchingNodes(@Nonnull String matchingText,
@Nullable Object parentText) {
String msg = String.format("There is more than one node with value '%s' under", matchingText, quote(parentText));
throw new LocationUnavailableException(msg);
}
private @Nullable String value(@Nonnull JTree tree, @Nullable Object modelValue) {
return cellReader.valueAt(tree, modelValue);
}
@Nonnull String separator() {
return separator;
}
void replaceSeparator(@Nonnull String newSeparator) {
separator = newSeparator;
}
void replaceCellReader(@Nonnull JTreeCellReader newCellReader) {
cellReader = newCellReader;
}
@Nonnull JTreeCellReader cellReader() {
return cellReader;
}
}