org.jboss.galleon.cli.cmd.AbstractCommaSeparatedCompleter Maven / Gradle / Ivy
/*
* Copyright 2016-2019 Red Hat, Inc. and/or its affiliates
* and other 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.galleon.cli.cmd;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import org.jboss.galleon.cli.AbstractCompleter;
import org.jboss.galleon.cli.PmCompleterInvocation;
/**
*
* @author [email protected]
*/
public abstract class AbstractCommaSeparatedCompleter extends AbstractCompleter {
@Override
public void complete(PmCompleterInvocation completerInvocation) {
List candidates = new ArrayList<>();
List all = getItems(completerInvocation);
if (all.isEmpty()) {
return;
}
String buffer = completerInvocation.getGivenCompleteValue();
candidates.addAll(all);
if (!buffer.isEmpty()) {
List specified = Arrays.asList(buffer.split(",+"));
if (buffer.charAt(buffer.length() - 1) != ',') {
String chunk = specified.get(specified.size() - 1);
boolean needsComma = candidates.contains(chunk);
candidates.removeAll(specified);
if (candidates.isEmpty()) {
candidates.add(chunk);
completerInvocation.setAppendSpace(true);
completerInvocation.setOffset(chunk.length());
} else {
final Iterator iterator = candidates.iterator();
boolean hasMore = false;
while (iterator.hasNext()) {
if (!iterator.next().startsWith(chunk)) {
hasMore = true;
iterator.remove();
}
}
if (needsComma) {
candidates.add(chunk + ",");
}
completerInvocation.setOffset(chunk.length());
completerInvocation.setAppendSpace(!hasMore);
}
} else {
candidates.removeAll(specified);
if (candidates.size() == 1) {
completerInvocation.setOffset(0);
}
}
}
completerInvocation.addAllCompleterValues(candidates);
}
}