com.ericsson.tools.cpp.compiler.linux.LinuxProvider.java Source code

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Here is the source code for com.ericsson.tools.cpp.compiler.linux.LinuxProvider.java

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/* 
 *  Copyright 2012 Ericsson AB
 *
 *  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 com.ericsson.tools.cpp.compiler.linux;

import java.util.Properties;

import org.apache.maven.plugin.logging.Log;
import com.ericsson.tools.cpp.compiler.bundle.BundleProvider;
import com.ericsson.tools.cpp.compiler.compilation.AbstractCompiler;
import com.ericsson.tools.cpp.compiler.compilation.gcc.GccIncludesAnalyzer;
import com.ericsson.tools.cpp.compiler.compilation.gcc.GccRecompilationJudge;
import com.ericsson.tools.cpp.compiler.dependencies.DependencyExtractor;
import com.ericsson.tools.cpp.compiler.linking.AbstractLinker;
import com.ericsson.tools.cpp.compiler.linking.executables.Executable;
import com.ericsson.tools.cpp.compiler.settings.CompilationSettings;
import org.codehaus.plexus.util.cli.CommandLineUtils.StringStreamConsumer;

import com.ericsson.tools.cpp.compiler.linux.compiler.Linux32Compiler;
import com.ericsson.tools.cpp.compiler.linux.compiler.Linux64Compiler;
import com.ericsson.tools.cpp.compiler.linux.linking.executables.Linux32ExecutableLinker;
import com.ericsson.tools.cpp.compiler.linux.linking.executables.Linux64ExecutableLinker;
import com.ericsson.tools.cpp.compiler.linux.linking.sharedlib.Linux32SharedLinker;
import com.ericsson.tools.cpp.compiler.linux.linking.sharedlib.Linux64SharedLinker;
import com.ericsson.tools.cpp.tools.CliExecutor;
import com.ericsson.tools.cpp.tools.environment.Environment;
import com.ericsson.tools.cpp.tools.environment.EnvironmentManager;

public class LinuxProvider implements BundleProvider {

    private final Log log;
    private final CompatibilityChecker compatibilityChecker;

    public LinuxProvider(EnvironmentManager em, Log log) {
        this.log = log;
        this.compatibilityChecker = new CompatibilityChecker(log);

        log.debug("Loaded Linux provider");
    }

    @Override
    public AbstractCompiler selectCompiler(Environment host, Environment target, CompilationSettings settings) {
        if (!compatibilityChecker.supported(getClass().getName(), host, target))
            return null;

        if (target.equals(EnvironmentManager.LINUX_32))
            return new Linux32Compiler(log, settings, target,
                    new GccRecompilationJudge(log, new GccIncludesAnalyzer()));

        if (target.equals(EnvironmentManager.LINUX_64))
            return new Linux64Compiler(log, settings, target,
                    new GccRecompilationJudge(log, new GccIncludesAnalyzer()));

        log.warn(getClass().getSimpleName() + " failed to find a compiler for target " + target.getName()
                + ", even though it's supposedly supported!");
        return null;
    }

    @Override
    public AbstractLinker selectExecutableLinker(final Environment host, final Environment target,
            final CompilationSettings settings, Executable executable, final DependencyExtractor extractor) {
        if (!compatibilityChecker.supported(getClass().getName(), host, target))
            return null;

        if (target.equals(EnvironmentManager.LINUX_32))
            return new Linux32ExecutableLinker(log, settings, target, executable, extractor);

        if (target.equals(EnvironmentManager.LINUX_64))
            return new Linux64ExecutableLinker(log, settings, target, executable, extractor);

        log.warn(getClass().getSimpleName() + " failed to find an executable linker for target " + target.getName()
                + ", even though it's supposedly supported!");
        return null;
    }

    @Override
    public AbstractLinker selectSharedLinker(final Environment host, final Environment target,
            final CompilationSettings settings) {
        if (!compatibilityChecker.supported(getClass().getName(), host, target))
            return null;

        if (target.equals(EnvironmentManager.LINUX_32))
            return new Linux32SharedLinker(log, settings, target);

        if (target.equals(EnvironmentManager.LINUX_64))
            return new Linux64SharedLinker(log, settings, target);

        log.warn(getClass().getSimpleName() + " failed to find a shared linker for target " + target.getName()
                + ", even though it's supposedly supported!");
        return null;
    }

    @Override
    public Environment determineHostEnvironment(Properties systemProperties) {
        String osName = systemProperties.getProperty("os.name", "");

        if (!osName.toLowerCase().contains("linux"))
            return null;

        final CliExecutor cli = new CliExecutor(log);
        cli.initialize("uname");
        cli.getCommandline().createArg().setValue("-i");
        try {
            cli.execute();
            final String output = ((StringStreamConsumer) cli.getStdOutConsumer()).getOutput();

            if (output.contains("i386"))
                return EnvironmentManager.LINUX_32;

            if (output.contains("x86_64"))
                return EnvironmentManager.LINUX_64;
        } catch (Exception e) {
            log.warn("Failed to check 32/64 architecture. Assuming none is supported. " + e);
        }

        return null;
    }
}