io.sarl.eclipse.launching.sreproviding.StandardProjectSREProvider.java Source code

Introduction

Here is the source code for io.sarl.eclipse.launching.sreproviding.StandardProjectSREProvider.java

Source

/*
 * $Id$
 *
 * SARL is an general-purpose agent programming language.
 * More details on http://www.sarl.io
 *
 * Copyright (C) 2014-2016 the original authors or authors.
 *
 * 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 io.sarl.eclipse.launching.sreproviding;

import com.google.common.base.Objects;
import com.google.common.base.Strings;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.QualifiedName;

import io.sarl.eclipse.SARLEclipsePlugin;
import io.sarl.eclipse.properties.RuntimeEnvironmentPropertyPage;
import io.sarl.eclipse.runtime.ISREInstall;
import io.sarl.eclipse.runtime.ProjectSREProvider;
import io.sarl.eclipse.runtime.SARLRuntime;

/** Default implementation of a project SRE provider.
 * This provider is reading the properties associated to the project and
 * determine the corresponding SRE.
 *
 * @author $Author: sgalland$
 * @version $FullVersion$
 * @mavengroupid $GroupId$
 * @mavenartifactid $ArtifactId$
 */
public class StandardProjectSREProvider implements ProjectSREProvider {

    private final boolean projectSpecificConfiguration;

    private final boolean projectUseSystemSRE;

    private final String projectSRE;

    /**
     * @param project - the project.
     */
    public StandardProjectSREProvider(IProject project) {
        boolean tmpSpecific = false;
        boolean tmpUseSystem = false;
        String tmpSRE = null;
        if (project != null) {
            try {
                QualifiedName propertyName = RuntimeEnvironmentPropertyPage
                        .qualify(RuntimeEnvironmentPropertyPage.PROPERTY_NAME_HAS_PROJECT_SPECIFIC);
                tmpSpecific = Boolean.parseBoolean(Objects.firstNonNull(project.getPersistentProperty(propertyName),
                        Boolean.FALSE.toString()));
                if (tmpSpecific) {
                    propertyName = RuntimeEnvironmentPropertyPage
                            .qualify(RuntimeEnvironmentPropertyPage.PROPERTY_NAME_USE_SYSTEM_WIDE_SRE);
                    tmpUseSystem = Boolean.parseBoolean(Objects
                            .firstNonNull(project.getPersistentProperty(propertyName), Boolean.FALSE.toString()));
                    if (!tmpUseSystem) {
                        propertyName = RuntimeEnvironmentPropertyPage
                                .qualify(RuntimeEnvironmentPropertyPage.PROPERTY_NAME_SRE_INSTALL_ID);
                        tmpSRE = Strings.nullToEmpty(project.getPersistentProperty(propertyName));
                    }
                }
            } catch (CoreException e) {
                SARLEclipsePlugin.getDefault().log(e);
            }
        }
        this.projectSpecificConfiguration = tmpSpecific;
        this.projectUseSystemSRE = tmpUseSystem;
        this.projectSRE = tmpSRE;
    }

    @Override
    public boolean hasProjectSpecificSREConfiguration() {
        return this.projectSpecificConfiguration;
    }

    @Override
    public boolean isSystemSREUsed() {
        return this.projectUseSystemSRE;
    }

    @Override
    public String getSREInstallIdentifier() {
        return this.projectSRE;
    }

    @Override
    public ISREInstall getProjectSREInstall() {
        ISREInstall sre = null;
        if (this.projectSpecificConfiguration && !this.projectUseSystemSRE) {
            if (!Strings.isNullOrEmpty(this.projectSRE)) {
                sre = SARLRuntime.getSREFromId(this.projectSRE);
            }
        }
        if (sre == null) {
            sre = SARLRuntime.getDefaultSREInstall();
        }
        return sre;
    }

}