| /******************************************************************************* |
| * Copyright (c) 2005, 2008 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.equinox.internal.p2.engine; |
| |
| import java.util.*; |
| import org.eclipse.core.runtime.Assert; |
| import org.eclipse.equinox.internal.provisional.p2.engine.*; |
| import org.eclipse.osgi.util.NLS; |
| |
| public class InstructionParser { |
| |
| InstallableUnitPhase phase; |
| Touchpoint touchpoint; |
| |
| public InstructionParser(InstallableUnitPhase phase, Touchpoint touchpoint) { |
| Assert.isNotNull(phase); |
| Assert.isNotNull(touchpoint); |
| this.phase = phase; |
| this.touchpoint = touchpoint; |
| } |
| |
| public ProvisioningAction[] parseActions(String instruction) { |
| List actions = new ArrayList(); |
| StringTokenizer tokenizer = new StringTokenizer(instruction, ";"); //$NON-NLS-1$ |
| while (tokenizer.hasMoreTokens()) { |
| actions.add(parseAction(tokenizer.nextToken())); |
| } |
| |
| return (ProvisioningAction[]) actions.toArray(new ProvisioningAction[actions.size()]); |
| } |
| |
| private ProvisioningAction parseAction(String statement) { |
| int openBracket = statement.indexOf('('); |
| int closeBracket = statement.lastIndexOf(')'); |
| String actionName = statement.substring(0, openBracket).trim(); |
| ProvisioningAction action = lookupAction(actionName); |
| |
| String nameValuePairs = statement.substring(openBracket + 1, closeBracket); |
| StringTokenizer tokenizer = new StringTokenizer(nameValuePairs, ","); //$NON-NLS-1$ |
| Map parameters = new HashMap(); |
| while (tokenizer.hasMoreTokens()) { |
| String nameValuePair = tokenizer.nextToken(); |
| int colonIndex = nameValuePair.indexOf(":"); //$NON-NLS-1$ |
| String name = nameValuePair.substring(0, colonIndex).trim(); |
| String value = nameValuePair.substring(colonIndex + 1).trim(); |
| parameters.put(name, value); |
| } |
| return new ParameterizedProvisioningAction(action, parameters); |
| } |
| |
| private ProvisioningAction lookupAction(String actionId) { |
| |
| ProvisioningAction action = phase.getAction(actionId); |
| if (action == null) |
| action = touchpoint.getAction(actionId); |
| |
| if (action == null) |
| throw new IllegalArgumentException(NLS.bind(Messages.action_not_found, actionId)); |
| |
| return action; |
| } |
| } |