java/maven/src/org/netbeans/modules/maven/options/MavenSettings.java - netbeans - Git at Google

 /*
  * 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.netbeans.modules.maven.options;

 import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
 import java.io.File;
 import java.io.FilenameFilter;
 import java.io.IOException;
 import java.io.InputStream;
 import java.net.URL;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 import java.util.Properties;
 import java.util.Set;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 import java.util.prefs.BackingStoreException;
 import java.util.prefs.Preferences;
 import org.apache.maven.execution.MavenExecutionRequest;
 import org.codehaus.plexus.util.cli.CommandLineUtils;
 import org.netbeans.api.annotations.common.CheckForNull;
 import org.netbeans.modules.maven.api.NbMavenProject;
 import org.netbeans.modules.maven.embedder.EmbedderFactory;
 import org.openide.filesystems.FileObject;
 import org.openide.filesystems.FileUtil;
 import org.openide.filesystems.URLMapper;
 import org.openide.util.NbPreferences;
 import org.openide.util.WeakSet;

 /**
  * a netbeans settings for global options that cannot be put into the settings file.
  * @author mkleint
  */
 public final class MavenSettings  {
     //same prop constant in Embedderfactory.java
     private static final String PROP_DEFAULT_OPTIONS = "defaultOptions"; // NOI18N
     private static final String PROP_SOURCE_DOWNLOAD = "sourceDownload"; //NOI18N
     private static final String PROP_JAVADOC_DOWNLOAD = "javadocDownload"; //NOI18N
     private static final String PROP_BINARY_DOWNLOAD = "binaryDownload"; //NOI18N
     private static final String PROP_LAST_ARCHETYPE_GROUPID = "lastArchetypeGroupId"; //NOI18N
     private static final String PROP_LAST_ARCHETYPE_VERSION = "lastArchetypeVersion"; //NOI18N
     private static final String PROP_SKIP_TESTS = "skipTests"; //NOI18N
     private static final String PROP_MAVEN_RUNTIMES = "mavenRuntimes"; //NOI18N
     public static final String PROP_PROJECTNODE_NAME_PATTERN = "project.displayName"; //NOI18N
     private static final String PROP_ALWAYS_OUTPUT = "alwaysShowOutput";
     private static final String PROP_SHOW_LOGGING_LEVEL = "showLoggingLevel"; //NOI18N
     private static final String PROP_REUSE_OUTPUT = "reuseOutputTabs";
     private static final String PROP_COLLAPSE_FOLDS = "collapseSuccessFolds";
     private static final String PROP_OUTPUT_TAB_CONFIG = "showConfigInOutputTab";
     private static final String PROP_OUTPUT_TAB_NAME = "showOutputTabAs";
     private static final String PROP_EXPERIMENTAL_USE_BEST_MAVEN = "useBestMaven";
     private static final String PROP_EXPERIMENTAL_USE_ALTERNATE_LOCATION = "useBestMavenAltLocation";
     private static final String PROP_EXPERIMENTAL_ALTERNATE_LOCATION = "bestMavenAltLocation";
     private static final String PROP_VM_OPTIONS_WRAP = "vmOptionsWrap";
     private static final String PROP_DEFAULT_JDK = "defaultJdk";

     //these are from former versions (6.5) and are here only for conversion
     private static final String PROP_DEBUG = "showDebug"; // NOI18N
     private static final String PROP_ERRORS = "showErrors"; //NOI18N
     private static final String PROP_CHECKSUM_POLICY = "checksumPolicy"; //NOI18N
     private static final String PROP_PLUGIN_POLICY = "pluginUpdatePolicy"; //NOI18N
     private static final String PROP_FAILURE_BEHAVIOUR = "failureBehaviour"; //NOI18N
     private static final String PROP_USE_REGISTRY = "usePluginRegistry"; //NOI18N

     private static final MavenSettings INSTANCE = new MavenSettings();

     private final Set<PropertyChangeListener> listeners = new WeakSet<>();

     public static MavenSettings getDefault() {
         return INSTANCE;
     }

     public boolean isInteractive() {
         return !hasOption("--batch", "-B"); //NOI18N
     }

     public Boolean isOffline() {
         if (hasOption("--offline", "-o")) { //NOI18N
             return Boolean.TRUE;
         }
         return null;
     }

     public boolean isShowDebug() {
         return hasOption("--debug", "-X"); //NOI18N
     }

     public boolean isShowErrors() {
         return hasOption("--errors", "-e"); //NOI18N
     }

     public boolean isUpdateSnapshots() {
         return hasOption("--update-snapshots", "-U"); //NOI18N
     }

     private boolean hasOption(String longName, String shortName) {
         String defOpts = getDefaultOptions();
         if (defOpts != null) {
             try {
                 String[] strs = CommandLineUtils.translateCommandline(defOpts);
                 for (String s : strs) {
                     s = s.trim();
                     if (s.startsWith(shortName) || s.startsWith(longName)) {
                         return true;
                     }
                 }
             } catch (Exception ex) {
                 Logger.getLogger(MavenSettings.class.getName()).log(Level.FINE, "Error parsing global options:{0}", defOpts);
                 //will check for contains of -X be enough?
                 return defOpts.contains(longName) || defOpts.contains(shortName);
             }
         }
         return false;
     }

     private Preferences getPreferences() {
         return NbPreferences.forModule(MavenSettings.class);
     }

     private String putProperty(String key, String value) {
         String retval = getProperty(key);
         if (value != null) {
             getPreferences().put(key, value);
         } else {
             getPreferences().remove(key);
         }
         return retval;
     }

     private String getProperty(String key) {
         return getPreferences().get(key, null);
     }

     private MavenSettings() {
         //import from older versions
         String defOpts = getPreferences().get(PROP_DEFAULT_OPTIONS, null);
         if (defOpts == null) {
             defOpts = "";
             //only when not already set by user or by previous import
             String debug = getPreferences().get(PROP_DEBUG, null);
             if (debug != null) {
                 boolean val = Boolean.parseBoolean(debug);
                 if (val) {
                     defOpts = defOpts + " --debug";//NOI18N
                 }
                 getPreferences().remove(PROP_DEBUG);
             }
             String error = getPreferences().get(PROP_ERRORS, null);
             if (error != null) {
                 boolean val = Boolean.parseBoolean(error);
                 if (val) {
                     defOpts = defOpts + " --errors"; //NOI18N
                 }
                 getPreferences().remove(PROP_ERRORS);
             }
             String checksum = getPreferences().get(PROP_CHECKSUM_POLICY, null);
             if (checksum != null) {
                 if (MavenExecutionRequest.CHECKSUM_POLICY_FAIL.equals(checksum)) {
                     defOpts = defOpts + " --strict-checksums";//NOI18N
                 } else if (MavenExecutionRequest.CHECKSUM_POLICY_WARN.equals(checksum)) {
                     defOpts = defOpts + " --lax-checksums";//NOI18N
                 }
                 getPreferences().remove(PROP_CHECKSUM_POLICY);
             }
             String fail = getPreferences().get(PROP_FAILURE_BEHAVIOUR, null);
             if (fail != null) {
                 if (MavenExecutionRequest.REACTOR_FAIL_NEVER.equals(fail)) {
                     defOpts = defOpts + " --fail-never";//NOI18N
                 } else if (MavenExecutionRequest.REACTOR_FAIL_FAST.equals(fail)) {
                     defOpts = defOpts + " --fail-fast";//NOI18N
                 } else if (MavenExecutionRequest.REACTOR_FAIL_AT_END.equals(fail)) {
                     defOpts = defOpts + " --fail-at-end";//NOI18N
                 }
                 getPreferences().remove(PROP_FAILURE_BEHAVIOUR);
             }
             String pluginUpdate = getPreferences().get(PROP_PLUGIN_POLICY, null);
             if (pluginUpdate != null) {
                 if (Boolean.parseBoolean(pluginUpdate)) {
                     defOpts = defOpts + " --check-plugin-updates";//NOI18N
                 } else {
                     defOpts = defOpts + " --no-plugin-updates";//NOI18N
                 }
                 getPreferences().remove(PROP_PLUGIN_POLICY);
             }
             String registry = getPreferences().get(PROP_USE_REGISTRY, null);
             if (registry != null) {
                 if (!Boolean.parseBoolean(registry)) {
                     defOpts = defOpts + " --no-plugin-registry";//NOI18N
                 }
                 getPreferences().remove(PROP_USE_REGISTRY);
             }
             setDefaultOptions(defOpts);
             try {
                 getPreferences().flush();
             } catch (BackingStoreException ex) {
 //                Exceptions.printStackTrace(ex);
             }
         }
     }

     public String getDefaultOptions() {
         return getPreferences().get(PROP_DEFAULT_OPTIONS, ""); //NOI18N
     }

     public void setDefaultOptions(String options) {
         String old = getDefaultOptions();
         putProperty(PROP_DEFAULT_OPTIONS, options);
         if (!old.equals(options)) {
             //options could contain -Dkey=value, then the MavenEmbedder instances need to be reloaded
             EmbedderFactory.resetCachedEmbedders();
         }
     }

     public boolean isVMOptionsWrap() {
         return getPreferences().getBoolean(PROP_VM_OPTIONS_WRAP, true);
     }

     public void setVMOptionsWrap(boolean b) {
         getPreferences().putBoolean(PROP_VM_OPTIONS_WRAP, b);
     }

     public String getDefaultJdk() {
         return getPreferences().get(PROP_DEFAULT_JDK, "");
     }

     public void setDefaultJdk(String jdk) {
         getPreferences().put(PROP_DEFAULT_JDK, jdk);
         PropertyChangeListener[] arr;
         synchronized (listeners) {
             arr = listeners.toArray(new PropertyChangeListener[0]);
         }
         for (PropertyChangeListener l : arr) {
             l.propertyChange(new PropertyChangeEvent(this, PROP_DEFAULT_JDK, null, jdk));
         }
     }

     public String getLastArchetypeGroupId() {
         return getPreferences().get(PROP_LAST_ARCHETYPE_GROUPID, Boolean.getBoolean("netbeans.full.hack") ? "test" : "com.mycompany"); //NOI18N
     }

     public void setLastArchetypeGroupId(String groupId) {
         putProperty(PROP_LAST_ARCHETYPE_GROUPID, groupId);
     }

     public boolean isSkipTests() {
         return getPreferences().getBoolean(PROP_SKIP_TESTS, false);
     }

     public void setSkipTests(boolean skipped) {
         getPreferences().putBoolean(PROP_SKIP_TESTS, skipped);
     }

     public boolean isAlwaysShowOutput() {
         return getPreferences().getBoolean(PROP_ALWAYS_OUTPUT, true);
     }

     public void setAlwaysShowOutput(boolean show) {
         getPreferences().putBoolean(PROP_ALWAYS_OUTPUT, show);
     }

     public boolean isShowLoggingLevel() {
         return getPreferences().getBoolean(PROP_SHOW_LOGGING_LEVEL, false);
     }

     public void setShowLoggingLevel(boolean show) {
         getPreferences().putBoolean(PROP_SHOW_LOGGING_LEVEL, show);
     }

     public boolean isReuseOutputTabs() {
         return getPreferences().getBoolean(PROP_REUSE_OUTPUT, true);
     }

     public void setReuseOutputTabs(boolean reuse) {
         getPreferences().putBoolean(PROP_REUSE_OUTPUT, reuse);
     }

     public String getLastArchetypeVersion() {
         return getPreferences().get(PROP_LAST_ARCHETYPE_VERSION, "1.0-SNAPSHOT"); //NOI18N
     }

     public void setLastArchetypeVersion(String version) {
         putProperty(PROP_LAST_ARCHETYPE_VERSION, version); //NOI18N
     }

     public void setProjectNodeNamePattern(String pattern) {
         if (null == pattern) {
             getPreferences().remove(PROP_PROJECTNODE_NAME_PATTERN);
         } else {
             putProperty(PROP_PROJECTNODE_NAME_PATTERN, pattern);
         }
     }

     public String getProjectNodeNamePattern() {
         return getPreferences().get(PROP_PROJECTNODE_NAME_PATTERN, null); //NOI18N
     }

     public boolean isUseBestMaven() {
         return getPreferences().getBoolean(PROP_EXPERIMENTAL_USE_BEST_MAVEN, false);
     }

     public void setUseBestMaven(boolean bestMaven) {
         getPreferences().putBoolean(PROP_EXPERIMENTAL_USE_BEST_MAVEN, bestMaven);
     }

     public boolean isUseBestMavenAltLocation() {
         return getPreferences().getBoolean(PROP_EXPERIMENTAL_USE_ALTERNATE_LOCATION, false);
     }

     public void setUseBestMavenAltLocation(boolean bestMavenAltLocation) {
         getPreferences().putBoolean(PROP_EXPERIMENTAL_USE_ALTERNATE_LOCATION, bestMavenAltLocation);
     }

     public void setBestMavenAltLocation(String location) {
         if (null == location) {
             getPreferences().remove(PROP_EXPERIMENTAL_ALTERNATE_LOCATION);
         } else {
             putProperty(PROP_EXPERIMENTAL_ALTERNATE_LOCATION, location);
         }
     }

     public String getBestMavenAltLocation() {
         return getPreferences().get(PROP_EXPERIMENTAL_ALTERNATE_LOCATION, null); //NOI18N
     }


     public boolean isCollapseSuccessFolds() {
         return getPreferences().getBoolean(PROP_COLLAPSE_FOLDS, false);
     }

     public void setCollapseSuccessFolds(boolean collapse) {
         getPreferences().putBoolean(PROP_COLLAPSE_FOLDS, collapse);
     }

     public void setOutputTabShowConfig(boolean selected) {
         getPreferences().putBoolean(PROP_OUTPUT_TAB_CONFIG, selected);
     }

     public boolean isOutputTabShowConfig() {
         return getPreferences().getBoolean(PROP_OUTPUT_TAB_CONFIG, false);
     }

     public OutputTabName getOutputTabName() {
         String val = getPreferences().get(PROP_OUTPUT_TAB_NAME, OutputTabName.PROJECT_NAME.name());
         try {
             return OutputTabName.valueOf(val);
         } catch (IllegalArgumentException ex) {
             return OutputTabName.PROJECT_NAME;
         }
     }

     public void setOutputTabName(OutputTabName ds) {
         if (ds != null) {
             getPreferences().put(PROP_OUTPUT_TAB_NAME, ds.name());
         } else {
             getPreferences().remove(PROP_OUTPUT_TAB_NAME);
         }
     }

     public void addWeakPropertyChangeListener(PropertyChangeListener l) {
         synchronized (listeners) {
             listeners.add(l);
         }
     }

     public static enum OutputTabName {
         PROJECT_NAME,
         PROJECT_ID
     }

     public static enum DownloadStrategy {
         NEVER,
         FIRST_OPEN,
         EVERY_OPEN
     }

     public DownloadStrategy getSourceDownloadStrategy() {
         String val = getPreferences().get(PROP_SOURCE_DOWNLOAD, DownloadStrategy.NEVER.name());
         try {
             return DownloadStrategy.valueOf(val);
         } catch (IllegalArgumentException ex) {
             return DownloadStrategy.NEVER;
         }
     }

     public void setSourceDownloadStrategy(DownloadStrategy ds) {
         if (ds != null) {
             getPreferences().put(PROP_SOURCE_DOWNLOAD, ds.name());
         } else {
             getPreferences().remove(PROP_SOURCE_DOWNLOAD);
         }
     }

     public DownloadStrategy getJavadocDownloadStrategy() {
         String val = getPreferences().get(PROP_JAVADOC_DOWNLOAD, DownloadStrategy.NEVER.name());
         try {
             return DownloadStrategy.valueOf(val);
         } catch (IllegalArgumentException ex) {
             return DownloadStrategy.NEVER;
         }
     }

     public void setJavadocDownloadStrategy(DownloadStrategy ds) {
         if (ds != null) {
             getPreferences().put(PROP_JAVADOC_DOWNLOAD, ds.name());
         } else {
             getPreferences().remove(PROP_JAVADOC_DOWNLOAD);
         }
     }

     public DownloadStrategy getBinaryDownloadStrategy() {
         String val = getPreferences().get(PROP_BINARY_DOWNLOAD, DownloadStrategy.NEVER.name());
         try {
             return DownloadStrategy.valueOf(val);
         } catch (IllegalArgumentException ex) {
             return DownloadStrategy.NEVER;
         }
     }

     public void setBinaryDownloadStrategy(DownloadStrategy ds) {
         if (ds != null) {
             getPreferences().put(PROP_BINARY_DOWNLOAD, ds.name());
         } else {
             getPreferences().remove(PROP_BINARY_DOWNLOAD);
         }
     }

     public static @CheckForNull String getCommandLineMavenVersion() {
         return getCommandLineMavenVersion(EmbedderFactory.getMavenHome());
     }

     public static @CheckForNull String getCommandLineMavenVersion(File mavenHome) {
         File[] jars = new File(mavenHome, "lib").listFiles(new FilenameFilter() { // NOI18N
             public @Override boolean accept(File dir, String name) {
                 return name.endsWith(".jar"); // NOI18N
             }
         });
         if (jars == null) {
             return null;
         }
         for (File jar : jars) {
             try {
                 // Prefer to use this rather than raw ZipFile since URLMapper since ArchiveURLMapper will cache JARs:
                 FileObject entry = URLMapper.findFileObject(new URL(FileUtil.urlForArchiveOrDir(jar), "META-INF/maven/org.apache.maven/maven-core/pom.properties")); // NOI18N
                 if (entry != null) {
                     InputStream is = entry.getInputStream();
                     try {
                         Properties properties = new Properties();
                         properties.load(is);
                         return properties.getProperty("version"); // NOI18N
                     } finally {
                         is.close();
                     }
                 }
             } catch (IOException x) {
                 // ignore for now
             }
         }
         return null;
     }

     private static List<String> searchMavenRuntimes(String[] paths, boolean stopOnFirstValid) {
         List<String> runtimes = new ArrayList<String>();
         for (String path : paths) {
             File file = new File(path);
             path = FileUtil.normalizeFile(file).getAbsolutePath();
             String version = getCommandLineMavenVersion(file);
             if (version != null) {
                 runtimes.add(path);
                 if (stopOnFirstValid) {
                     break;
                 }
             }
         }

         return runtimes;
     }

 	/**
 	 * Searches for Maven Runtimes by the environment settings and returns the first valid one.
 	 *
 	 * <p>It searches in this order:
 	 * <ul>
 	 * <li>MAVEN_HOME</li>
 	 * <li>M2_HOME</li>
 	 * <li>PATH</li></ul>
 	 * </p>
 	 * <p>Only the first appereance will be appended.</p>
 	 *
 	 * @returns the default external Maven runtime on the path.
 	 */
     public static String getDefaultExternalMavenRuntime() {
         String paths = System.getenv("PATH"); // NOI18N
         String mavenHome = System.getenv("MAVEN_HOME"); // NOI18N
         String m2Home = System.getenv("M2_HOME"); // NOI18N

         List<String> mavenEnvDirs = new ArrayList<String>();
         if (mavenHome != null) {
             mavenEnvDirs.add(mavenHome);
         }
         if (m2Home != null) {
             mavenEnvDirs.add(m2Home);
         }
         if (paths != null) {
             for (String path : paths.split(File.pathSeparator)) {
                 if (!path.endsWith("bin")) { // NOI18N
                     continue;
                 }

                 if(path.equals("/bin") || path.equals("bin")) {
                     mavenEnvDirs.add(path);
                 } else {
                     mavenEnvDirs.add(path.substring(0,
                         path.length() - "bin".length() - File.pathSeparator.length()));
                 }
             }
         }

         List<String> runtimes = searchMavenRuntimes(mavenEnvDirs.toArray(new String[0]), true);
         return !runtimes.isEmpty() ? runtimes.get(0) : null;
     }

     public List<String> getUserDefinedMavenRuntimes() {
         List<String> runtimes = new ArrayList<String>();

         String defaultRuntimePath = getDefaultExternalMavenRuntime();
         String runtimesPref = getPreferences().get(PROP_MAVEN_RUNTIMES, null);
         if (runtimesPref != null) {
             for (String runtimePath : runtimesPref.split(File.pathSeparator)) {
                 if (!"".equals(runtimePath) && !runtimePath.equals(defaultRuntimePath)) {
                     runtimes.add(runtimePath);
                 }
             }
         }

         return Collections.unmodifiableList(runtimes);
     }

     public void setMavenRuntimes(List<String> runtimes) {
         if (runtimes == null) {
             getPreferences().remove(PROP_MAVEN_RUNTIMES);
         } else {
             String runtimesPref = "";
             for (String path : runtimes) {
                 runtimesPref += path + File.pathSeparator;
             }
             if (runtimesPref.endsWith(File.pathSeparator)) {
                 runtimesPref = runtimesPref.substring(0, runtimesPref.length() - 1);
             }
             putProperty(PROP_MAVEN_RUNTIMES, runtimesPref);
         }
     }

 }
	/*
	* 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.netbeans.modules.maven.options;

	import java.beans.PropertyChangeEvent;
	import java.beans.PropertyChangeListener;
	import java.io.File;
	import java.io.FilenameFilter;
	import java.io.IOException;
	import java.io.InputStream;
	import java.net.URL;
	import java.util.ArrayList;
	import java.util.Collections;
	import java.util.List;
	import java.util.Properties;
	import java.util.Set;
	import java.util.logging.Level;
	import java.util.logging.Logger;
	import java.util.prefs.BackingStoreException;
	import java.util.prefs.Preferences;
	import org.apache.maven.execution.MavenExecutionRequest;
	import org.codehaus.plexus.util.cli.CommandLineUtils;
	import org.netbeans.api.annotations.common.CheckForNull;
	import org.netbeans.modules.maven.api.NbMavenProject;
	import org.netbeans.modules.maven.embedder.EmbedderFactory;
	import org.openide.filesystems.FileObject;
	import org.openide.filesystems.FileUtil;
	import org.openide.filesystems.URLMapper;
	import org.openide.util.NbPreferences;
	import org.openide.util.WeakSet;

	/**
	* a netbeans settings for global options that cannot be put into the settings file.
	* @author mkleint
	*/
	public final class MavenSettings {
	//same prop constant in Embedderfactory.java
	private static final String PROP_DEFAULT_OPTIONS = "defaultOptions"; // NOI18N
	private static final String PROP_SOURCE_DOWNLOAD = "sourceDownload"; //NOI18N
	private static final String PROP_JAVADOC_DOWNLOAD = "javadocDownload"; //NOI18N
	private static final String PROP_BINARY_DOWNLOAD = "binaryDownload"; //NOI18N
	private static final String PROP_LAST_ARCHETYPE_GROUPID = "lastArchetypeGroupId"; //NOI18N
	private static final String PROP_LAST_ARCHETYPE_VERSION = "lastArchetypeVersion"; //NOI18N
	private static final String PROP_SKIP_TESTS = "skipTests"; //NOI18N
	private static final String PROP_MAVEN_RUNTIMES = "mavenRuntimes"; //NOI18N
	public static final String PROP_PROJECTNODE_NAME_PATTERN = "project.displayName"; //NOI18N
	private static final String PROP_ALWAYS_OUTPUT = "alwaysShowOutput";
	private static final String PROP_SHOW_LOGGING_LEVEL = "showLoggingLevel"; //NOI18N
	private static final String PROP_REUSE_OUTPUT = "reuseOutputTabs";
	private static final String PROP_COLLAPSE_FOLDS = "collapseSuccessFolds";
	private static final String PROP_OUTPUT_TAB_CONFIG = "showConfigInOutputTab";
	private static final String PROP_OUTPUT_TAB_NAME = "showOutputTabAs";
	private static final String PROP_EXPERIMENTAL_USE_BEST_MAVEN = "useBestMaven";
	private static final String PROP_EXPERIMENTAL_USE_ALTERNATE_LOCATION = "useBestMavenAltLocation";
	private static final String PROP_EXPERIMENTAL_ALTERNATE_LOCATION = "bestMavenAltLocation";
	private static final String PROP_VM_OPTIONS_WRAP = "vmOptionsWrap";
	private static final String PROP_DEFAULT_JDK = "defaultJdk";

	//these are from former versions (6.5) and are here only for conversion
	private static final String PROP_DEBUG = "showDebug"; // NOI18N
	private static final String PROP_ERRORS = "showErrors"; //NOI18N
	private static final String PROP_CHECKSUM_POLICY = "checksumPolicy"; //NOI18N
	private static final String PROP_PLUGIN_POLICY = "pluginUpdatePolicy"; //NOI18N
	private static final String PROP_FAILURE_BEHAVIOUR = "failureBehaviour"; //NOI18N
	private static final String PROP_USE_REGISTRY = "usePluginRegistry"; //NOI18N

	private static final MavenSettings INSTANCE = new MavenSettings();

	private final Set<PropertyChangeListener> listeners = new WeakSet<>();

	public static MavenSettings getDefault() {
	return INSTANCE;
	}

	public boolean isInteractive() {
	return !hasOption("--batch", "-B"); //NOI18N
	}

	public Boolean isOffline() {
	if (hasOption("--offline", "-o")) { //NOI18N
	return Boolean.TRUE;
	}
	return null;
	}

	public boolean isShowDebug() {
	return hasOption("--debug", "-X"); //NOI18N
	}

	public boolean isShowErrors() {
	return hasOption("--errors", "-e"); //NOI18N
	}

	public boolean isUpdateSnapshots() {
	return hasOption("--update-snapshots", "-U"); //NOI18N
	}

	private boolean hasOption(String longName, String shortName) {
	String defOpts = getDefaultOptions();
	if (defOpts != null) {
	try {
	String[] strs = CommandLineUtils.translateCommandline(defOpts);
	for (String s : strs) {
	s = s.trim();
	if (s.startsWith(shortName) \|\| s.startsWith(longName)) {
	return true;
	}
	}
	} catch (Exception ex) {
	Logger.getLogger(MavenSettings.class.getName()).log(Level.FINE, "Error parsing global options:{0}", defOpts);
	//will check for contains of -X be enough?
	return defOpts.contains(longName) \|\| defOpts.contains(shortName);
	}
	}
	return false;
	}

	private Preferences getPreferences() {
	return NbPreferences.forModule(MavenSettings.class);
	}

	private String putProperty(String key, String value) {
	String retval = getProperty(key);
	if (value != null) {
	getPreferences().put(key, value);
	} else {
	getPreferences().remove(key);
	}
	return retval;
	}

	private String getProperty(String key) {
	return getPreferences().get(key, null);
	}

	private MavenSettings() {
	//import from older versions
	String defOpts = getPreferences().get(PROP_DEFAULT_OPTIONS, null);
	if (defOpts == null) {
	defOpts = "";
	//only when not already set by user or by previous import
	String debug = getPreferences().get(PROP_DEBUG, null);
	if (debug != null) {
	boolean val = Boolean.parseBoolean(debug);
	if (val) {
	defOpts = defOpts + " --debug";//NOI18N
	}
	getPreferences().remove(PROP_DEBUG);
	}
	String error = getPreferences().get(PROP_ERRORS, null);
	if (error != null) {
	boolean val = Boolean.parseBoolean(error);
	if (val) {
	defOpts = defOpts + " --errors"; //NOI18N
	}
	getPreferences().remove(PROP_ERRORS);
	}
	String checksum = getPreferences().get(PROP_CHECKSUM_POLICY, null);
	if (checksum != null) {
	if (MavenExecutionRequest.CHECKSUM_POLICY_FAIL.equals(checksum)) {
	defOpts = defOpts + " --strict-checksums";//NOI18N
	} else if (MavenExecutionRequest.CHECKSUM_POLICY_WARN.equals(checksum)) {
	defOpts = defOpts + " --lax-checksums";//NOI18N
	}
	getPreferences().remove(PROP_CHECKSUM_POLICY);
	}
	String fail = getPreferences().get(PROP_FAILURE_BEHAVIOUR, null);
	if (fail != null) {
	if (MavenExecutionRequest.REACTOR_FAIL_NEVER.equals(fail)) {
	defOpts = defOpts + " --fail-never";//NOI18N
	} else if (MavenExecutionRequest.REACTOR_FAIL_FAST.equals(fail)) {
	defOpts = defOpts + " --fail-fast";//NOI18N
	} else if (MavenExecutionRequest.REACTOR_FAIL_AT_END.equals(fail)) {
	defOpts = defOpts + " --fail-at-end";//NOI18N
	}
	getPreferences().remove(PROP_FAILURE_BEHAVIOUR);
	}
	String pluginUpdate = getPreferences().get(PROP_PLUGIN_POLICY, null);
	if (pluginUpdate != null) {
	if (Boolean.parseBoolean(pluginUpdate)) {
	defOpts = defOpts + " --check-plugin-updates";//NOI18N
	} else {
	defOpts = defOpts + " --no-plugin-updates";//NOI18N
	}
	getPreferences().remove(PROP_PLUGIN_POLICY);
	}
	String registry = getPreferences().get(PROP_USE_REGISTRY, null);
	if (registry != null) {
	if (!Boolean.parseBoolean(registry)) {
	defOpts = defOpts + " --no-plugin-registry";//NOI18N
	}
	getPreferences().remove(PROP_USE_REGISTRY);
	}
	setDefaultOptions(defOpts);
	try {
	getPreferences().flush();
	} catch (BackingStoreException ex) {
	// Exceptions.printStackTrace(ex);
	}
	}
	}

	public String getDefaultOptions() {
	return getPreferences().get(PROP_DEFAULT_OPTIONS, ""); //NOI18N
	}

	public void setDefaultOptions(String options) {
	String old = getDefaultOptions();
	putProperty(PROP_DEFAULT_OPTIONS, options);
	if (!old.equals(options)) {
	//options could contain -Dkey=value, then the MavenEmbedder instances need to be reloaded
	EmbedderFactory.resetCachedEmbedders();
	}
	}

	public boolean isVMOptionsWrap() {
	return getPreferences().getBoolean(PROP_VM_OPTIONS_WRAP, true);
	}

	public void setVMOptionsWrap(boolean b) {
	getPreferences().putBoolean(PROP_VM_OPTIONS_WRAP, b);
	}

	public String getDefaultJdk() {
	return getPreferences().get(PROP_DEFAULT_JDK, "");
	}

	public void setDefaultJdk(String jdk) {
	getPreferences().put(PROP_DEFAULT_JDK, jdk);
	PropertyChangeListener[] arr;
	synchronized (listeners) {
	arr = listeners.toArray(new PropertyChangeListener[0]);
	}
	for (PropertyChangeListener l : arr) {
	l.propertyChange(new PropertyChangeEvent(this, PROP_DEFAULT_JDK, null, jdk));
	}
	}

	public String getLastArchetypeGroupId() {
	return getPreferences().get(PROP_LAST_ARCHETYPE_GROUPID, Boolean.getBoolean("netbeans.full.hack") ? "test" : "com.mycompany"); //NOI18N
	}

	public void setLastArchetypeGroupId(String groupId) {
	putProperty(PROP_LAST_ARCHETYPE_GROUPID, groupId);
	}

	public boolean isSkipTests() {
	return getPreferences().getBoolean(PROP_SKIP_TESTS, false);
	}

	public void setSkipTests(boolean skipped) {
	getPreferences().putBoolean(PROP_SKIP_TESTS, skipped);
	}

	public boolean isAlwaysShowOutput() {
	return getPreferences().getBoolean(PROP_ALWAYS_OUTPUT, true);
	}

	public void setAlwaysShowOutput(boolean show) {
	getPreferences().putBoolean(PROP_ALWAYS_OUTPUT, show);
	}

	public boolean isShowLoggingLevel() {
	return getPreferences().getBoolean(PROP_SHOW_LOGGING_LEVEL, false);
	}

	public void setShowLoggingLevel(boolean show) {
	getPreferences().putBoolean(PROP_SHOW_LOGGING_LEVEL, show);
	}

	public boolean isReuseOutputTabs() {
	return getPreferences().getBoolean(PROP_REUSE_OUTPUT, true);
	}

	public void setReuseOutputTabs(boolean reuse) {
	getPreferences().putBoolean(PROP_REUSE_OUTPUT, reuse);
	}

	public String getLastArchetypeVersion() {
	return getPreferences().get(PROP_LAST_ARCHETYPE_VERSION, "1.0-SNAPSHOT"); //NOI18N
	}

	public void setLastArchetypeVersion(String version) {
	putProperty(PROP_LAST_ARCHETYPE_VERSION, version); //NOI18N
	}

	public void setProjectNodeNamePattern(String pattern) {
	if (null == pattern) {
	getPreferences().remove(PROP_PROJECTNODE_NAME_PATTERN);
	} else {
	putProperty(PROP_PROJECTNODE_NAME_PATTERN, pattern);
	}
	}

	public String getProjectNodeNamePattern() {
	return getPreferences().get(PROP_PROJECTNODE_NAME_PATTERN, null); //NOI18N
	}

	public boolean isUseBestMaven() {
	return getPreferences().getBoolean(PROP_EXPERIMENTAL_USE_BEST_MAVEN, false);
	}

	public void setUseBestMaven(boolean bestMaven) {
	getPreferences().putBoolean(PROP_EXPERIMENTAL_USE_BEST_MAVEN, bestMaven);
	}

	public boolean isUseBestMavenAltLocation() {
	return getPreferences().getBoolean(PROP_EXPERIMENTAL_USE_ALTERNATE_LOCATION, false);
	}

	public void setUseBestMavenAltLocation(boolean bestMavenAltLocation) {
	getPreferences().putBoolean(PROP_EXPERIMENTAL_USE_ALTERNATE_LOCATION, bestMavenAltLocation);
	}

	public void setBestMavenAltLocation(String location) {
	if (null == location) {
	getPreferences().remove(PROP_EXPERIMENTAL_ALTERNATE_LOCATION);
	} else {
	putProperty(PROP_EXPERIMENTAL_ALTERNATE_LOCATION, location);
	}
	}

	public String getBestMavenAltLocation() {
	return getPreferences().get(PROP_EXPERIMENTAL_ALTERNATE_LOCATION, null); //NOI18N
	}


	public boolean isCollapseSuccessFolds() {
	return getPreferences().getBoolean(PROP_COLLAPSE_FOLDS, false);
	}

	public void setCollapseSuccessFolds(boolean collapse) {
	getPreferences().putBoolean(PROP_COLLAPSE_FOLDS, collapse);
	}

	public void setOutputTabShowConfig(boolean selected) {
	getPreferences().putBoolean(PROP_OUTPUT_TAB_CONFIG, selected);
	}

	public boolean isOutputTabShowConfig() {
	return getPreferences().getBoolean(PROP_OUTPUT_TAB_CONFIG, false);
	}

	public OutputTabName getOutputTabName() {
	String val = getPreferences().get(PROP_OUTPUT_TAB_NAME, OutputTabName.PROJECT_NAME.name());
	try {
	return OutputTabName.valueOf(val);
	} catch (IllegalArgumentException ex) {
	return OutputTabName.PROJECT_NAME;
	}
	}

	public void setOutputTabName(OutputTabName ds) {
	if (ds != null) {
	getPreferences().put(PROP_OUTPUT_TAB_NAME, ds.name());
	} else {
	getPreferences().remove(PROP_OUTPUT_TAB_NAME);
	}
	}

	public void addWeakPropertyChangeListener(PropertyChangeListener l) {
	synchronized (listeners) {
	listeners.add(l);
	}
	}

	public static enum OutputTabName {
	PROJECT_NAME,
	PROJECT_ID
	}

	public static enum DownloadStrategy {
	NEVER,
	FIRST_OPEN,
	EVERY_OPEN
	}

	public DownloadStrategy getSourceDownloadStrategy() {
	String val = getPreferences().get(PROP_SOURCE_DOWNLOAD, DownloadStrategy.NEVER.name());
	try {
	return DownloadStrategy.valueOf(val);
	} catch (IllegalArgumentException ex) {
	return DownloadStrategy.NEVER;
	}
	}

	public void setSourceDownloadStrategy(DownloadStrategy ds) {
	if (ds != null) {
	getPreferences().put(PROP_SOURCE_DOWNLOAD, ds.name());
	} else {
	getPreferences().remove(PROP_SOURCE_DOWNLOAD);
	}
	}

	public DownloadStrategy getJavadocDownloadStrategy() {
	String val = getPreferences().get(PROP_JAVADOC_DOWNLOAD, DownloadStrategy.NEVER.name());
	try {
	return DownloadStrategy.valueOf(val);
	} catch (IllegalArgumentException ex) {
	return DownloadStrategy.NEVER;
	}
	}

	public void setJavadocDownloadStrategy(DownloadStrategy ds) {
	if (ds != null) {
	getPreferences().put(PROP_JAVADOC_DOWNLOAD, ds.name());
	} else {
	getPreferences().remove(PROP_JAVADOC_DOWNLOAD);
	}
	}

	public DownloadStrategy getBinaryDownloadStrategy() {
	String val = getPreferences().get(PROP_BINARY_DOWNLOAD, DownloadStrategy.NEVER.name());
	try {
	return DownloadStrategy.valueOf(val);
	} catch (IllegalArgumentException ex) {
	return DownloadStrategy.NEVER;
	}
	}

	public void setBinaryDownloadStrategy(DownloadStrategy ds) {
	if (ds != null) {
	getPreferences().put(PROP_BINARY_DOWNLOAD, ds.name());
	} else {
	getPreferences().remove(PROP_BINARY_DOWNLOAD);
	}
	}

	public static @CheckForNull String getCommandLineMavenVersion() {
	return getCommandLineMavenVersion(EmbedderFactory.getMavenHome());
	}

	public static @CheckForNull String getCommandLineMavenVersion(File mavenHome) {
	File[] jars = new File(mavenHome, "lib").listFiles(new FilenameFilter() { // NOI18N
	public @Override boolean accept(File dir, String name) {
	return name.endsWith(".jar"); // NOI18N
	}
	});
	if (jars == null) {
	return null;
	}
	for (File jar : jars) {
	try {
	// Prefer to use this rather than raw ZipFile since URLMapper since ArchiveURLMapper will cache JARs:
	FileObject entry = URLMapper.findFileObject(new URL(FileUtil.urlForArchiveOrDir(jar), "META-INF/maven/org.apache.maven/maven-core/pom.properties")); // NOI18N
	if (entry != null) {
	InputStream is = entry.getInputStream();
	try {
	Properties properties = new Properties();
	properties.load(is);
	return properties.getProperty("version"); // NOI18N
	} finally {
	is.close();
	}
	}
	} catch (IOException x) {
	// ignore for now
	}
	}
	return null;
	}

	private static List<String> searchMavenRuntimes(String[] paths, boolean stopOnFirstValid) {
	List<String> runtimes = new ArrayList<String>();
	for (String path : paths) {
	File file = new File(path);
	path = FileUtil.normalizeFile(file).getAbsolutePath();
	String version = getCommandLineMavenVersion(file);
	if (version != null) {
	runtimes.add(path);
	if (stopOnFirstValid) {
	break;
	}
	}
	}

	return runtimes;
	}

	/**
	* Searches for Maven Runtimes by the environment settings and returns the first valid one.
	*
	* <p>It searches in this order:
	* <ul>
	* <li>MAVEN_HOME</li>
	* <li>M2_HOME</li>
	* <li>PATH</li></ul>
	* </p>
	* <p>Only the first appereance will be appended.</p>
	*
	* @returns the default external Maven runtime on the path.
	*/
	public static String getDefaultExternalMavenRuntime() {
	String paths = System.getenv("PATH"); // NOI18N
	String mavenHome = System.getenv("MAVEN_HOME"); // NOI18N
	String m2Home = System.getenv("M2_HOME"); // NOI18N

	List<String> mavenEnvDirs = new ArrayList<String>();
	if (mavenHome != null) {
	mavenEnvDirs.add(mavenHome);
	}
	if (m2Home != null) {
	mavenEnvDirs.add(m2Home);
	}
	if (paths != null) {
	for (String path : paths.split(File.pathSeparator)) {
	if (!path.endsWith("bin")) { // NOI18N
	continue;
	}

	if(path.equals("/bin") \|\| path.equals("bin")) {
	mavenEnvDirs.add(path);
	} else {
	mavenEnvDirs.add(path.substring(0,
	path.length() - "bin".length() - File.pathSeparator.length()));
	}
	}
	}

	List<String> runtimes = searchMavenRuntimes(mavenEnvDirs.toArray(new String[0]), true);
	return !runtimes.isEmpty() ? runtimes.get(0) : null;
	}

	public List<String> getUserDefinedMavenRuntimes() {
	List<String> runtimes = new ArrayList<String>();

	String defaultRuntimePath = getDefaultExternalMavenRuntime();
	String runtimesPref = getPreferences().get(PROP_MAVEN_RUNTIMES, null);
	if (runtimesPref != null) {
	for (String runtimePath : runtimesPref.split(File.pathSeparator)) {
	if (!"".equals(runtimePath) && !runtimePath.equals(defaultRuntimePath)) {
	runtimes.add(runtimePath);
	}
	}
	}

	return Collections.unmodifiableList(runtimes);
	}

	public void setMavenRuntimes(List<String> runtimes) {
	if (runtimes == null) {
	getPreferences().remove(PROP_MAVEN_RUNTIMES);
	} else {
	String runtimesPref = "";
	for (String path : runtimes) {
	runtimesPref += path + File.pathSeparator;
	}
	if (runtimesPref.endsWith(File.pathSeparator)) {
	runtimesPref = runtimesPref.substring(0, runtimesPref.length() - 1);
	}
	putProperty(PROP_MAVEN_RUNTIMES, runtimesPref);
	}
	}

	}