From e5b7380c874745c989d1816b8f552504f038e1bc Mon Sep 17 00:00:00 2001 From: lresende Date: Thu, 26 Sep 2013 20:33:20 +0000 Subject: 2.0 branch for possible maintenance release git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1526672 13f79535-47bb-0310-9956-ffa450edef68 --- .../tuscany/sca/shell/jline/TShellCompletor.java | 181 +++++++++++++++++++++ 1 file changed, 181 insertions(+) create mode 100644 sca-java-2.x/branches/2.0/modules/shell/src/main/java/org/apache/tuscany/sca/shell/jline/TShellCompletor.java (limited to 'sca-java-2.x/branches/2.0/modules/shell/src/main/java/org/apache/tuscany/sca/shell/jline/TShellCompletor.java') diff --git a/sca-java-2.x/branches/2.0/modules/shell/src/main/java/org/apache/tuscany/sca/shell/jline/TShellCompletor.java b/sca-java-2.x/branches/2.0/modules/shell/src/main/java/org/apache/tuscany/sca/shell/jline/TShellCompletor.java new file mode 100644 index 0000000000..3f38caf1e5 --- /dev/null +++ b/sca-java-2.x/branches/2.0/modules/shell/src/main/java/org/apache/tuscany/sca/shell/jline/TShellCompletor.java @@ -0,0 +1,181 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses 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 org.apache.tuscany.sca.shell.jline; + +import java.util.ArrayList; +import java.util.Arrays; +import java.util.HashMap; +import java.util.LinkedList; +import java.util.List; +import java.util.Map; + +import jline.ArgumentCompletor; +import jline.Completor; +import jline.ConsoleReader; +import jline.FileNameCompletor; +import jline.NullCompletor; +import jline.SimpleCompletor; + +import org.apache.tuscany.sca.shell.Command; +import org.apache.tuscany.sca.shell.Shell; + +/** + * A Completor thats specific to the Tuscany Shell that knows about + * each command and has an argument specific Completor for each command argument. + */ +public class TShellCompletor extends ArgumentCompletor { + + Map completors; + final Completor commandCompletor; + final ArgumentDelimiter delim = new WhitespaceArgumentDelimiter(); + final Shell shell; + + static String lastArg; + static List allArgs; + + public TShellCompletor(Shell shell) { + super((Completor)null); + this.shell = shell; + this.commandCompletor = new SimpleCompletor(shell.getCommandNames()); + + completors = new HashMap(); + completors.put("help", new Completor[]{commandCompletor, commandCompletor, new NullCompletor()}); + completors.put("install", new Completor[]{commandCompletor, new InstallCompletor(shell)}); + completors.put("installed", new Completor[]{commandCompletor, new ICURICompletor(shell), new NullCompletor()}); + completors.put("invoke", new Completor[]{commandCompletor, new ServiceCompletor(shell), new ServiceOperationCompletor(shell), new NullCompletor()}); + completors.put("load", new Completor[]{commandCompletor, new FileNameCompletor(), new NullCompletor()}); + completors.put("remove", new Completor[]{commandCompletor, new ICURICompletor(shell), new NullCompletor()}); + completors.put("run", new Completor[]{commandCompletor, new FileNameCompletor(), new NullCompletor()}); + completors.put("save", new Completor[]{commandCompletor, new FileNameCompletor(), new NullCompletor()}); + completors.put("start", new Completor[]{commandCompletor, new ICURICompletor(shell), new CompositeURICompletor(shell), new RemoteNodeCompletor(shell), new NullCompletor()}); + completors.put("started", new Completor[]{commandCompletor, new ICURICompletor(shell), new CompositeURICompletor(shell), new NullCompletor()}); + completors.put("stop", new Completor[]{commandCompletor, new ICURICompletor(shell), new CompositeURICompletor(shell), new NullCompletor()}); + + for (Command c : shell.getCommands().values()) { + List compleors = new ArrayList(); + compleors.add(commandCompletor); + compleors.addAll(Arrays.asList(c.getCompletors())); + completors.put(c.getName(), compleors.toArray(new Completor[]{})); + } + } + + @Override + /** + * Copied from JLine ArgumentCompletor class. The only change is to + * get the completors by using the getCompletors method and setting the lastArg static. + */ + public int complete(final String buffer, final int cursor, + final List candidates) { + + ArgumentList list = delim.delimit(buffer, cursor); + int argpos = list.getArgumentPosition(); + int argIndex = list.getCursorArgumentIndex(); + + if (argIndex < 0) { + return -1; + } + + if (argIndex > 0) { + /* set the last argument in a static for the CompositeURICompletor */ + lastArg = list.getArguments()[argIndex-1]; + if (lastArg != null) lastArg = lastArg.trim(); + } + allArgs = Arrays.asList(list.getArguments()); + + final Completor comp; + + Completor[] completors = getCompletors(buffer); + + // if we are beyond the end of the completors, just use the last one + if (argIndex >= completors.length) { + comp = completors[completors.length - 1]; + } else { + comp = completors[argIndex]; + } + + // ensure that all the previous completors are successful before + // allowing this completor to pass (only if strict is true). + for (int i = 0; getStrict() && (i < argIndex); i++) { + Completor sub = + completors[(i >= completors.length) ? (completors.length - 1) : i]; + String[] args = list.getArguments(); + String arg = ((args == null) || (i >= args.length)) ? "" : args[i]; + + List subCandidates = new LinkedList(); + + if (sub.complete(arg, arg.length(), subCandidates) == -1) { + return -1; + } + + if (subCandidates.size() == 0) { + return -1; + } + } + + int ret = comp.complete(list.getCursorArgument(), argpos, candidates); + + if (ret == -1) { + return -1; + } + + int pos = ret + (list.getBufferPosition() - argpos); + + /** + * Special case: when completing in the middle of a line, and the + * area under the cursor is a delimiter, then trim any delimiters + * from the candidates, since we do not need to have an extra + * delimiter. + * + * E.g., if we have a completion for "foo", and we + * enter "f bar" into the buffer, and move to after the "f" + * and hit TAB, we want "foo bar" instead of "foo bar". + */ + if ((cursor != buffer.length()) && delim.isDelimiter(buffer, cursor)) { + for (int i = 0; i < candidates.size(); i++) { + String val = candidates.get(i).toString(); + + while ((val.length() > 0) + && delim.isDelimiter(val, val.length() - 1)) { + val = val.substring(0, val.length() - 1); + } + + candidates.set(i, val); + } + } + + ConsoleReader.debug("Completing " + buffer + "(pos=" + cursor + ") " + + "with: " + candidates + ": offset=" + pos); + + return pos; + } + + protected Completor[] getCompletors(String buffer) { + StringBuilder sb = new StringBuilder(); + for (int i=0; i