Application: gvSIG desktop

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 3

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.installer.lib.impl;

import java.security.InvalidParameterException;

import java.text.MessageFormat;

import org.gvsig.installer.lib.api.Version;

public class DefaultVersion implements Version {

        private int mayor = 0;

        private int minor = 0;

        private int rev = 0;

        private String classifier = null;

        private int build = 0;

        public DefaultVersion() {

                super();

        }

        protected DefaultVersion(int mayor, int minor, int rev, String classifier,

                        int build) {

                this();

                this.mayor = mayor;

                this.minor = minor;

                this.rev = rev;

                this.classifier = classifier;

                this.build = build;

        }

        public Version parse(String version) {

                // Formato: mayor.minor.rev-classifier-build

                String[] x = version.split("[.]");

                int lx = x.length;

                if (lx == 1) {

                        this.mayor = parseIntClassifierAndBuild(x[0], version);

                        this.minor = 0;

                        this.rev = 0;

                        this.classifier = null;

                        this.build = 0;

                } else if (lx == 2) {

                        this.mayor = Integer.parseInt(x[0]);

                        this.minor = parseIntClassifierAndBuild(x[1], version);

                        this.rev = 0;

                        this.classifier = null;

                        this.build = 0;

                } else if (lx == 3) {

                        this.mayor = Integer.parseInt(x[0]);

                        this.minor = Integer.parseInt(x[1]);

                        this.rev = parseIntClassifierAndBuild(x[2], version);

                } else {

                        throw new InvalidParameterException(version);

                }

                return this;

        }

        private int parseIntClassifierAndBuild(String s, String fullversion) {

                int value;

                String[] y = s.split("[-]");

                int ly = y.length;

                if (ly == 1) {

                        value = Integer.parseInt(y[0]);

                        this.classifier = null;

                        this.build = 0;

                } else if (ly == 2) {

                        value = Integer.parseInt(y[0]);

                        try {

                                this.build = Integer.parseInt(y[1]);

                                this.classifier = null;

                        } catch (NumberFormatException e) {

                                this.build = 0;

                                this.classifier = y[1];

                        }

                } else if (ly == 3) {

                        value = Integer.parseInt(y[0]);

                        this.classifier = y[1];

                        this.build = Integer.parseInt(y[2]);

                } else {

                        throw new InvalidParameterException(fullversion);

                }

                return value;

        }

        public int getMayor() {

                return this.mayor;

        }

        public int getMajor() {

            return this.mayor;

        }

        public int getMinor() {

                return this.minor;

        }

        public int getRevision() {

                return this.rev;

        }

        public String getClassifier() {

                return this.classifier;

        }

        public int getBuild() {

                return this.build;

        }

        public boolean check(String op, Version other) {

                if ("=".equals(op) || "==".equals(op) || "-eq".equals(op)) {

                        return this.fullFormat().compareTo(other.fullFormat()) == 0;

                }

                if (">".equals(op) || "-gt".equals(op)) {

                        return this.fullFormat().compareTo(other.fullFormat()) > 0;

                }

                if (">=".equals(op) || "-ge".equals(op)) {

                        return this.fullFormat().compareTo(other.fullFormat()) >= 0;

                }

                if ("<".equals(op) || "-lt".equals(op)) {

                        return this.fullFormat().compareTo(other.fullFormat()) < 0;

                }

                if ("<=".equals(op) || "-le".equals(op)) {

                        return this.fullFormat().compareTo(other.fullFormat()) <= 0;

                }

                return false;

        }

        @Override

        public String toString() {

                if (this.classifier == null) {

                        return MessageFormat.format("{0}.{1}.{2}-{3,number,####}",

                                        this.mayor, this.minor, this.rev, this.build);

                } else {

                        return MessageFormat.format("{0}.{1}.{2}-{3}-{4,number,####}",

                                        this.mayor, this.minor, this.rev, this.classifier,

                                        this.build);

                }

        }

        public String fullFormat() {

                if (this.classifier == null) {

                        // classifier ZZZZ allows compare correctly tow versions

                        return MessageFormat

                                        .format(

                                                        "{0,number,0000}.{1,number,0000}.{2,number,0000}-ZZZZ-{3,number,0000}",

                                                        this.mayor, this.minor, this.rev, this.build);

                } else {

                        return MessageFormat

                                        .format(

                                                        "{0,number,0000}.{1,number,0000}.{2,number,0000}-{3}-{4,number,0000}",

                                                        this.mayor, this.minor, this.rev, this.classifier,

                                                        this.build);

                }

        }

        @Override

        public Object clone() throws CloneNotSupportedException {

                return super.clone();

        }

        @Override

        public boolean equals(Object obj) {

                Version other = (Version) obj;

                if (this.mayor != other.getMayor()) {

                        return false;

                }

                if (this.minor != other.getMinor()) {

                        return false;

                }

                if (this.rev != other.getRevision()) {

                        return false;

                }

                if (this.build != other.getBuild()) {

                        return false;

                }

                if (this.classifier == null) {

                        if (other.getClassifier() == null) {

                                return true;

                        } else {

                                return false;

                        }

                }

                if (!this.classifier.equalsIgnoreCase(other.getClassifier())) {

                        return false;

                }

                return true;

        }

        public int hashCode() {

            return (classifier == null ? 0 : classifier.hashCode()) +

                (mayor<<13) + (minor<<19) + (rev<<25) + build;

        }

        public Version setBuild(int build) {

                this.build = build;

                return this;

        }

}