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/*******************************************************************************
* Copyright (c) 2009 Cloudsmith Inc. and others.
* 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:
* Cloudsmith Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.internal.p2.metadata;
import org.eclipse.equinox.p2.metadata.IVersionFormat;
import org.eclipse.equinox.p2.metadata.Version;
import org.eclipse.osgi.util.NLS;
/**
* @Immutable
* @noextend This class is not intended to be subclassed by clients.
*/
public class OSGiVersion extends BasicVersion {
private static final long serialVersionUID = -4530178927569560877L;
private static final boolean[] allowedOSGiChars;
private final int major;
private final int minor;
private final int micro;
private final Comparable<?> qualifier;
static {
allowedOSGiChars = new boolean[128];
for (int c = '0'; c <= '9'; ++c)
allowedOSGiChars[c] = true;
for (int c = 'A'; c <= 'Z'; ++c)
allowedOSGiChars[c] = true;
for (int c = 'a'; c <= 'z'; ++c)
allowedOSGiChars[c] = true;
allowedOSGiChars['_'] = true;
allowedOSGiChars['-'] = true;
}
public static boolean isValidOSGiQualifier(Comparable<?> e) {
if (e == VersionVector.MAXS_VALUE)
return true;
if (!(e instanceof String))
return false;
String s = (String) e;
int idx = s.length();
boolean[] allowed = allowedOSGiChars;
while (--idx >= 0) {
int c = s.charAt(idx);
if (c < '-' || c > 'z' || !allowed[c])
return false;
}
return true;
}
static BasicVersion fromVector(Comparable<?>[] vector, Comparable<? extends Object> pad) {
if (vector.length != 4) {
if (vector.length == 0) {
if (pad == null)
return (BasicVersion) emptyVersion;
if (pad == VersionVector.MAX_VALUE)
return (BasicVersion) MAX_VERSION;
}
throw new IllegalArgumentException();
}
int major = ((Integer) vector[0]).intValue();
int minor = ((Integer) vector[1]).intValue();
int micro = ((Integer) vector[2]).intValue();
Comparable<?> qualifier = vector[3];
return (major == 0 && minor == 0 && micro == 0 && qualifier == VersionVector.MINS_VALUE) ? (BasicVersion) emptyVersion : new OSGiVersion(major, minor, micro, qualifier);
}
public OSGiVersion(int major, int minor, int micro, Comparable<? extends Object> qualifier) {
this.major = major;
this.minor = minor;
this.micro = micro;
if (!isValidOSGiQualifier(qualifier))
throw new IllegalArgumentException(NLS.bind(Messages._0_is_not_a_valid_qualifier_in_osgi_1, "qualifier", this)); //$NON-NLS-1$
this.qualifier = qualifier;
}
public int compareTo(Version v) {
int result;
if (!(v instanceof OSGiVersion)) {
BasicVersion ov = (BasicVersion) v;
result = VersionVector.compare(getVector(), null, ov.getVector(), ov.getPad());
} else {
OSGiVersion ov = (OSGiVersion) v;
result = major - ov.major;
if (result == 0) {
result = minor - ov.minor;
if (result == 0) {
result = micro - ov.micro;
if (result == 0)
result = VersionVector.compareSegments(qualifier, ov.qualifier);
}
}
}
return result;
}
public boolean equals(Object object) {
if (object == this)
return true;
if (!(object instanceof OSGiVersion)) {
if (object instanceof BasicVersion) {
BasicVersion ov = (BasicVersion) object;
return VersionVector.equals(getVector(), null, ov.getVector(), ov.getPad());
}
return false;
}
OSGiVersion other = (OSGiVersion) object;
return micro == other.micro && minor == other.minor && major == other.major && qualifier.equals(other.qualifier);
}
public IVersionFormat getFormat() {
return VersionFormat.OSGI_FORMAT;
}
public int getMajor() {
return major;
}
public int getMicro() {
return micro;
}
public int getMinor() {
return minor;
}
public String getOriginal() {
return toString();
}
public String getQualifier() {
return qualifier == VersionVector.MAXS_VALUE ? IVersionFormat.DEFAULT_MAX_STRING_TRANSLATION : (String) qualifier;
}
public int hashCode() {
return (major << 24) + (minor << 16) + (micro << 8) + qualifier.hashCode();
}
public boolean isOSGiCompatible() {
return true;
}
public void originalToString(StringBuffer sb, boolean rangeSafe) {
toString(sb);
}
public void rawToString(StringBuffer sb, boolean rangeSafe) {
sb.append(major);
sb.append('.');
sb.append(minor);
sb.append('.');
sb.append(micro);
sb.append('.');
sb.append('\'');
sb.append(qualifier);
sb.append('\'');
}
public void toString(StringBuffer sb) {
sb.append(major);
sb.append('.');
sb.append(minor);
sb.append('.');
sb.append(micro);
if (qualifier != VersionVector.MINS_VALUE) {
sb.append('.');
sb.append(getQualifier());
}
}
public Comparable<?>[] getVector() {
return new Comparable[] {VersionParser.valueOf(major), VersionParser.valueOf(minor), VersionParser.valueOf(micro), qualifier};
}
public Comparable<?> getPad() {
return null;
}
public Comparable<?> getSegment(int index) {
switch (index) {
case 0 :
return VersionParser.valueOf(major);
case 1 :
return VersionParser.valueOf(minor);
case 2 :
return VersionParser.valueOf(micro);
case 3 :
return qualifier;
}
throw new ArrayIndexOutOfBoundsException(index); // Not in the imaginary vector array
}
public int getSegmentCount() {
return 4;
}
}
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