jlibs.wadl.cli.completors.SetCompletion Maven / Gradle / Ivy
/**
* Copyright 2015 Santhosh Kumar Tekuri
*
* The JLibs authors license 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 jlibs.wadl.cli.completors;
import jlibs.wadl.cli.WADLTerminal;
import jlibs.wadl.cli.model.Path;
import java.util.ArrayDeque;
import java.util.Deque;
import java.util.LinkedHashSet;
import java.util.Set;
/**
* @author Santhosh Kumar T
*/
public class SetCompletion extends Completion{
public SetCompletion(WADLTerminal terminal){
super(terminal);
}
@Override
public void complete(Buffer buffer){
Path path = terminal.getCurrentPath();
Deque stack = new ArrayDeque();
while(path!=null){
stack.push(path);
path = path.parent;
}
Set assigned = new LinkedHashSet();
Set unAssigned = new LinkedHashSet();
while(!stack.isEmpty()){
path = stack.pop();
String var = path.variable();
if(var!=null){
if(path.value!=null)
assigned.add(var);
else
unAssigned.add(var);
}
}
while(true){
String token = buffer.next();
if(buffer.hasNext()){
int equals = token.indexOf('=');
if(equals!=-1){
String var = token.substring(0, equals);
unAssigned.remove(var);
assigned.remove(var);
}
}else{
for(String var: unAssigned)
buffer.addCandidate(var, '=');
if(!buffer.hasCandidates()){
for(String var: assigned)
buffer.addCandidate(var, '=');
}
return;
}
}
}
}