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229 lines
8.9 KiB
229 lines
8.9 KiB
package net.yacy.peers.operation;
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import java.util.Comparator;
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import java.util.regex.Matcher;
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import net.yacy.cora.util.ConcurrentLog;
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import net.yacy.search.Switchboard;
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public class yacyVersion implements Comparator<yacyVersion>, Comparable<yacyVersion> {
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public static final double YACY_SUPPORTS_GZIP_POST_REQUESTS_CHUNKED = (float) 0.58204761;
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public static final double YACY_HANDLES_COLLECTION_INDEX = (float) 0.486;
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public static final double YACY_POVIDES_REMOTECRAWL_LISTS = (float) 0.550;
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private static yacyVersion thisVersion = null;
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/**
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* information about latest release, retrieved by other peers release version,
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* this value is overwritten when a peer with later version appears*/
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public static double latestRelease = 0.1; //
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private double releaseNr;
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private final String dateStamp;
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private int svn;
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private final boolean mainRelease;
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private final String name;
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/**
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* parse a release file name
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* <p>the have the following form:
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* <ul>
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* <li>yacy_dev_v${releaseVersion}_${DSTAMP}_${releaseNr}.tar.gz</li>
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* <li>yacy_v${releaseVersion}_${DSTAMP}_${releaseNr}.tar.gz</li>
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* </ul>
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* i.e. yacy_v0.51_20070321_3501.tar.gz
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* @param release
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*/
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public yacyVersion(String release, final String host) {
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this.name = release;
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if (release == null || !(release.endsWith(".tar.gz") || release.endsWith(".tar"))) {
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throw new RuntimeException("release file name '" + release + "' is not valid, no tar.gz");
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}
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// cut off tail
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release = release.substring(0, release.length() - ((release.endsWith(".gz")) ? 7 : 4));
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if (release.startsWith("yacy_v")) {
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release = release.substring(6);
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} else {
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throw new RuntimeException("release file name '" + release + "' is not valid, wrong prefix");
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}
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// now all release names have the form
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// ${releaseVersion}_${DSTAMP}_${releaseNr}
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final String[] comp = release.split("_"); // should be 3 parts
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if (comp.length < 2 || comp.length > 3) {
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throw new RuntimeException("release file name '" + release + "' is not valid, 3 information parts expected");
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}
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try {
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this.releaseNr = Double.parseDouble(comp[0]);
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} catch (final NumberFormatException e) {
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throw new RuntimeException("release file name '" + release + "' is not valid, '" + comp[0] + "' should be a double number");
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}
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this.mainRelease = ((int) (getReleaseNr() * 100)) % 10 == 0 || (host != null && host.endsWith("yacy.net"));
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//System.out.println("Release version " + this.releaseNr + " is " + ((this.mainRelease) ? "main" : "std"));
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this.dateStamp = comp[1];
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if (getDateStamp().length() != 8) {
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throw new RuntimeException("release file name '" + release + "' is not valid, '" + comp[1] + "' should be a 8-digit date string");
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}
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if (comp.length > 2) {
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try {
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this.svn = Integer.parseInt(comp[2]);
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} catch (final NumberFormatException e) {
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throw new RuntimeException("release file name '" + release + "' is not valid, '" + comp[2] + "' should be a integer number");
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}
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} else {
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this.svn = 0; // we migrate to git
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}
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// finished! we parsed a relase string
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}
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public static final yacyVersion thisVersion() {
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// construct a virtual release name for this release
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if (thisVersion == null) {
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final Switchboard sb = Switchboard.getSwitchboard();
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if (sb == null) return null;
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thisVersion = new yacyVersion(
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"yacy" +
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"_v" + yacyBuildProperties.getVersion() + "_" +
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yacyBuildProperties.getBuildDate() + "_" +
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yacyBuildProperties.getSVNRevision() + ".tar.gz", null);
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}
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return thisVersion;
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}
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/**
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* returns 0 if this object is equal to the obj, -1 if this is smaller
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* than obj and 1 if this is greater than obj
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*/
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@Override
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public int compareTo(final yacyVersion obj) {
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return compare(this, obj);
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}
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/**
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* compare-operator for two yacyVersion objects
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* must be implemented to make it possible to put this object into
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* a ordered structure, like TreeSet or TreeMap
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*/
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@Override
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public int compare(final yacyVersion v0, final yacyVersion v1) {
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int r = (Double.valueOf(v0.getReleaseGitNr())).compareTo(Double.valueOf(v1.getReleaseGitNr()));
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if (r != 0) return r;
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r = v0.getDateStamp().compareTo(v1.getDateStamp());
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if (r != 0) return r;
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return (Integer.valueOf(v0.getSvn())).compareTo(Integer.valueOf(v1.getSvn()));
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}
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@Override
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public boolean equals(final Object obj) {
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if (obj instanceof yacyVersion) {
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final yacyVersion v = (yacyVersion) obj;
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return (getReleaseGitNr() == v.getReleaseGitNr()) && (getSvn() == v.getSvn()) && (getName().equals(v.getName()));
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}
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return false;
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}
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@Override
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public int hashCode() {
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return getName().hashCode();
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}
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/**
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* Converts combined version-string to a pretty string, e.g. "0.435/01818" or "dev/01818" (development version) or "dev/00000" (in case of wrong input)
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*
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* @param ver Combined version string matching regular expression: "\A(\d+\.\d{3})(\d{4}|\d{5})\z" <br>
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* (i.e.: start of input, 1 or more digits in front of decimal point, decimal point followed by 3 digits as major version, 4 or 5 digits for SVN-Version, end of input)
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* @return If the major version is < 0.11 - major version is separated from SVN-version by '/', e.g. "0.435/01818" <br>
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* If the major version is >= 0.11 - major version is replaced by "dev" and separated SVN-version by '/', e.g."dev/01818" <br>
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* "dev/00000" - If the input does not matcht the regular expression above
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*/
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public static String[] combined2prettyVersion(final String ver) {
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return combined2prettyVersion(ver, "");
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}
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public static String[] combined2prettyVersion(final String ver, final String computerName) {
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final Matcher matcher = yacyBuildProperties.versionMatcher.matcher(ver);
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if (!matcher.find()) {
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ConcurrentLog.warn("STARTUP", "Peer '"+computerName+"': wrong format of version-string: '" + ver + "'. Using default string 'dev/00000' instead");
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return new String[]{"dev", "0000"};
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}
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final String mainversion = (Double.parseDouble(matcher.group(1)) < 0.11 ? "dev" : matcher.group(1));
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String revision = matcher.group(2);
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for(int i=revision.length();i<4;++i) revision += "0";
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return new String[]{mainversion, revision};
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}
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public static int revision(final String ver) {
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final Matcher matcher = yacyBuildProperties.versionMatcher.matcher(ver);
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if (!matcher.find()) return 0;
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return Integer.parseInt(matcher.group(2));
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}
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/**
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* Combines the version of YaCy with the versionnumber from SVN to a
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* combined version
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*
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* @param version Current given version.
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* @param svn Current version given from SVN.
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* @return String with the combined version.
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*/
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public static double versvn2combinedVersion(final double version, final int svn) {
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return (Math.rint((version*100000000.0) + (svn))/100000000);
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}
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/**
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* Timestamp of this version
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* @return timestamp
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*/
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public String getDateStamp() {
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return this.dateStamp;
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}
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/**
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* SVN revision of release
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* @return svn revision as integer
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*/
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public int getSvn() {
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return this.svn;
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}
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/**
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* Whether this is a stable main release or not
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* @return
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*/
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public boolean isMainRelease() {
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return this.mainRelease;
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}
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/**
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* release number as Double (e. g. 7.04)
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* @return
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*/
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public double getReleaseNr() {
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return this.releaseNr;
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}
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public double getReleaseGitNr() {
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// combine release number with git number
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return this.getReleaseNr() + ((getSvn()) / 10000000.0d);
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}
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public String getName() {
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return this.name;
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}
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public static void main(final String[] args) {
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final yacyVersion y1 = new yacyVersion("yacy_v0.51_20070321_3501.tar.gz", null);
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final yacyVersion y2 = new yacyVersion("yacy_v1.0_20111203_8134.tar.gz", null);
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final yacyVersion y3 = new yacyVersion("yacy_v1.01_20111206_8140.tar.gz", null);
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final yacyVersion y4 = new yacyVersion("yacy_v1.01_20111207.tar.gz", null);
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System.out.println(y1.compareTo(y2));
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System.out.println(y2.compareTo(y3));
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System.out.println(y3.compareTo(y4));
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}
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}
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