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/*
*
* Copyright 2002-2004 The Ant-Contrib project
*
* 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 net.sf.antcontrib.cpptasks.compiler;
import org.apache.tools.ant.types.Environment;
/**
* An abstract processor (compiler/linker) implementation.
*
* @author Curt Arnold
*/
public abstract class AbstractProcessor implements Processor, Cloneable {
/**
* default bid for a file name that the processor recognizes but does not
* process and does not want to fall through to the linker
*/
public final static int DEFAULT_DISCARD_BID = 1;
/**
* default bid for a file name that the processor desires to process
*/
public final static int DEFAULT_PROCESS_BID = 100;
/**
* Determines the identification of a command line processor by capture the
* first line of its output for a specific command.
*
* @param command
* array of command line arguments starting with executable
* name. For example, { "cl" }
* @param fallback
* start of identifier if there is an error in executing the
* command
* @return identifier for the processor
*/
protected static String getIdentifier(String[] command, String fallback) {
String identifier = fallback;
try {
String[] cmdout = CaptureStreamHandler.run(command);
if (cmdout.length > 0) {
identifier = cmdout[0];
}
} catch (Throwable ex) {
identifier = fallback + ":" + ex.toString();
}
return identifier;
}
private final String[] headerExtensions;
private final String[] sourceExtensions;
protected AbstractProcessor(String[] sourceExtensions,
String[] headerExtensions) {
this.sourceExtensions = (String[]) sourceExtensions.clone();
this.headerExtensions = (String[]) headerExtensions.clone();
}
/**
* Returns the bid of the processor for the file.
*
* @param inputFile
* filename of input file
* @return bid for the file, 0 indicates no interest, 1 indicates that the
* processor recognizes the file but doesn't process it (header
* files, for example), 100 indicates strong interest
*/
public int bid(String inputFile) {
String lower = inputFile.toLowerCase();
for (int i = 0; i < sourceExtensions.length; i++) {
if (lower.endsWith(sourceExtensions[i])) {
return DEFAULT_PROCESS_BID;
}
}
for (int i = 0; i < headerExtensions.length; i++) {
if (lower.endsWith(headerExtensions[i])) {
return DEFAULT_DISCARD_BID;
}
}
return 0;
}
public Processor changeEnvironment(boolean newEnvironment, Environment env) {
return this;
}
protected Object clone() throws CloneNotSupportedException {
return super.clone();
}
public String[] getHeaderExtensions() {
return (String[]) this.headerExtensions.clone();
}
abstract public String getIdentifier();
/**
* Gets the target operating system architecture
*
* @return String target operating system architecture
*/
protected String getOSArch() {
return System.getProperty("os.arch");
}
/**
* Gets the target operating system name
*
* @return String target operating system name
*/
protected String getOSName() {
return System.getProperty("os.name");
}
public String[] getSourceExtensions() {
return (String[]) this.sourceExtensions.clone();
}
/**
* Returns true if the target operating system is Mac OS X or Darwin.
*
* @return boolean
*/
protected boolean isDarwin() {
String osName = getOSName();
return "Mac OS X".equals(osName);
}
public final String toString() {
return getIdentifier();
}
}
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