Activation.java

/*******************************************************************************
 * Copyright (c) 2012-2017 Codenvy, S.A.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *   Codenvy, S.A. - initial API and implementation
 *******************************************************************************/
package org.eclipse.che.ide.maven.tools;

import org.eclipse.che.commons.xml.Element;
import org.eclipse.che.commons.xml.NewElement;

import static com.google.common.base.Strings.isNullOrEmpty;
import static org.eclipse.che.commons.xml.NewElement.createElement;

/**
 * Describes activation for <i>/project/profiles/profile/</i>. Activations are the key of a profile. The power of a profile comes from its
 * ability to modify the basic POM only under certain circumstances.
 * Those circumstances are specified via an activation element.
 * <p/>
 * Supports next data:
 * <ul>
 * <li>activationByDefault</li>
 * <li>os</li>
 * <li>file</li>
 * <li>property</li>
 * <li>jdk</li>
 * </ul>
 */
public class Activation {
    public Element element;

    private String             activeByDefault;
    private ActivationOS       os;
    private ActivationFile     file;
    private ActivationProperty property;
    /** This will activate if the test is run under a jdk version number that matches the prefix given. */
    private String             jdk;

    public Activation(Element element) {
        this.element = element;
        if (element.hasSingleChild("activeByDefault")) {
            activeByDefault = element.getChildText("activeByDefault");
        }
        if (element.hasSingleChild("os")) {
            os = new ActivationOS(element.getSingleChild("os"));
        }

        if (element.hasSingleChild("file")) {
            file = new ActivationFile(element.getSingleChild("file"));
        }

        if (element.hasSingleChild("property")) {
            property = new ActivationProperty(element.getSingleChild("property"));
        }

        if (element.hasSingleChild("jdk")) {
            jdk = element.getChildText("jdk");
        }
    }

    public String isActiveByDefault() {
        return activeByDefault;
    }

    public Activation setActiveByDefault(String activeByDefault) {
        this.activeByDefault = activeByDefault;
        if (!isNew()) {
            if (isNullOrEmpty(activeByDefault)) {
                element.removeChild("activeByDefault");
            } else if (element.hasSingleChild("activeByDefault")) {
                element.getSingleChild("activeByDefault").setText(activeByDefault);
            } else {
                element.appendChild(createElement("activeByDefault", activeByDefault));
            }
        }
        return this;
    }

    public ActivationOS getOs() {
        return os;
    }

    public Activation setOs(ActivationOS os) {
        this.os = os;
        if (!isNew()) {
            if (os == null) {
                element.removeChild("os");
            } else if (element.hasSingleChild("os")) {
                element.removeChild("os");
                element.appendChild(os.asXMLElement());
            } else {
                element.appendChild(os.asXMLElement());
            }
        }
        return this;
    }

    public ActivationFile getFile() {
        return file;
    }

    public Activation setFile(ActivationFile file) {
        this.file = file;
        if (!isNew()) {
            if (file == null) {
                element.removeChild("file");
            } else if (element.hasSingleChild("file")) {
                element.removeChild("file");
                element.appendChild(file.asXMLElement());
            } else {
                element.appendChild(file.asXMLElement());
            }
        }
        return this;
    }

    public ActivationProperty getProperty() {
        return property;
    }

    public Activation setProperty(ActivationProperty property) {
        this.property = property;
        if (!isNew()) {
            if (property == null) {
                element.removeChild("property");
            } else if (element.hasSingleChild("property")) {
                element.removeChild("property");
                element.appendChild(property.asXMLElement());
            } else {
                element.appendChild(property.asXMLElement());
            }
        }
        return this;
    }

    public String getJdk() {
        return jdk;
    }

    public Activation setJdk(String jdk) {
        this.jdk = jdk;
        if (!isNew()) {
            if (isNullOrEmpty(jdk)) {
                element.removeChild("jdk");
            } else if (element.hasSingleChild("jdk")) {
                element.getSingleChild("jdk").setText(jdk);
            } else {
                element.appendChild(createElement("jdk", jdk));
            }
        }
        return this;
    }

    /** Removes <activation> element. */
    public void remove() {
        if (element != null) {
            element.remove();
            element = null;
        }
    }

    private boolean isNew() {
        return element == null;
    }

    /** Returns full <activation> element */
    public NewElement asXMLElement() {
        final NewElement activation = createElement("activation");

        if (!isNullOrEmpty(activeByDefault)) {
            activation.appendChild(createElement("activeByDefault", activeByDefault));
        }
        if (os != null) {
            activation.appendChild(os.asXMLElement());
        }
        if (file != null) {
            activation.appendChild(file.asXMLElement());
        }
        if (property != null) {
            activation.appendChild(property.asXMLElement());
        }
        if (!isNullOrEmpty(jdk)) {
            activation.appendChild(createElement("jdk", jdk));
        }

        return activation;
    }
}