| /* |
| * 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.felix.deploymentadmin; |
| |
| import java.util.BitSet; |
| import java.util.jar.Attributes; |
| |
| import org.osgi.service.deploymentadmin.DeploymentException; |
| |
| /** |
| * Objects of this class represent the meta data for a resource from a deployment package, this |
| * can be either bundle resources or processed resources. |
| */ |
| public class AbstractInfo { |
| |
| private static final BitSet VALID_RESOURCE_PATH_CHARS; |
| static |
| { |
| VALID_RESOURCE_PATH_CHARS = new BitSet(); |
| for ( int i = 'a'; i <= 'z'; i++ ) |
| { |
| VALID_RESOURCE_PATH_CHARS.set( i ); |
| } |
| for ( int i = 'A'; i <= 'Z'; i++ ) |
| { |
| VALID_RESOURCE_PATH_CHARS.set( i ); |
| } |
| for ( int i = '0'; i <= '9'; i++ ) |
| { |
| VALID_RESOURCE_PATH_CHARS.set( i ); |
| } |
| VALID_RESOURCE_PATH_CHARS.set( '.' ); |
| VALID_RESOURCE_PATH_CHARS.set( '-' ); |
| VALID_RESOURCE_PATH_CHARS.set( '_' ); |
| VALID_RESOURCE_PATH_CHARS.set( '/' ); |
| } |
| |
| private final String m_path; |
| private final Attributes m_attributes; |
| private final boolean m_missing; |
| |
| /** |
| * Create an instance |
| * |
| * @param path Resource-id aka path of the resource |
| * @param attributes Attributes containing the meta data of the resource |
| * @throws DeploymentException If the specified attributes do not match the correct syntax for a deployment package resource. |
| */ |
| public AbstractInfo(String path, Attributes attributes) throws DeploymentException { |
| verifyEntryName(path); |
| m_path = path; |
| m_attributes = attributes; |
| m_missing = parseBooleanHeader(attributes, Constants.DEPLOYMENTPACKAGE_MISSING); |
| } |
| |
| /** |
| * @return The path of the resource |
| */ |
| public String getPath() { |
| return m_path; |
| } |
| |
| /** |
| * Return the value of a header for this resource |
| * @param header Name of the header |
| * @return Value of the header specified by the given header name |
| */ |
| public String getHeader(String header) { |
| return m_attributes.getValue(header); |
| } |
| |
| private void verifyEntryName(String name) throws DeploymentException { |
| byte[] bytes = name.getBytes(); |
| boolean delimiterSeen = false; |
| for(int j = 0; j < bytes.length; j++) { |
| if(!VALID_RESOURCE_PATH_CHARS.get(bytes[j])) { |
| throw new DeploymentException(DeploymentException.CODE_BAD_HEADER, "Resource ID '" + name +"' contains invalid character(s)"); |
| } |
| if (bytes[j] == '/') { |
| if (delimiterSeen) { |
| throw new DeploymentException(DeploymentException.CODE_BAD_HEADER, "Resource ID '" + name +"' contains multiple consequetive path seperators"); |
| } else { |
| delimiterSeen = true; |
| } |
| } else { |
| delimiterSeen = false; |
| } |
| } |
| } |
| |
| /** |
| * Determine if a resource is missing or not |
| * @return True if the actual data for this resource is not present, false otherwise |
| */ |
| public boolean isMissing() { |
| return m_missing; |
| } |
| |
| /** |
| * Parses a header that is allowed to have only boolean values. |
| * |
| * @param attributes Set of attributes containing the header |
| * @param header The header to verify |
| * @return true if the value of the header was "true", false if the value was "false" |
| * @throws DeploymentException if the value was not "true" or "false" |
| */ |
| protected boolean parseBooleanHeader(Attributes attributes, String header) throws DeploymentException { |
| String value = attributes.getValue(header); |
| if (value != null) { |
| if ("true".equals(value)) { |
| return true; |
| } else if ("false".equals(value)){ |
| return false; |
| } else { |
| throw new DeploymentException(DeploymentException.CODE_BAD_HEADER, "Invalid '" + header + "' header for manifest " + |
| "entry '" + getPath() + "' header, should be either 'true' or 'false' or not present"); |
| } |
| } |
| return false; |
| } |
| |
| } |