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package com.allanbank.mongodb; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.Serializable; |
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import java.util.Arrays; |
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import java.util.List; |
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import java.util.Properties; |
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import com.allanbank.mongodb.bson.NumericElement; |
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import com.allanbank.mongodb.util.IOUtils; |
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import com.allanbank.mongodb.util.log.Log; |
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import com.allanbank.mongodb.util.log.LogFactory; |
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40 | 0 | public class Version implements Serializable, Comparable<Version> { |
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public static final Version UNKNOWN; |
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public static final Version VERSION; |
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52 | 1 | public static final Version VERSION_0 = Version.parse("0"); |
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55 | 1 | public static final Version VERSION_2_0 = Version.parse("2.0"); |
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58 | 1 | public static final Version VERSION_2_2 = Version.parse("2.2"); |
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61 | 1 | public static final Version VERSION_2_4 = Version.parse("2.4"); |
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64 | 1 | public static final Version VERSION_2_6 = Version.parse("2.6"); |
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67 | 1 | protected static final Version VERSION_2_5_2 = Version.parse("2.5.2"); |
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70 | 1 | protected static final Version VERSION_2_5_4 = Version.parse("2.5.4"); |
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73 | 1 | private static final Log LOG = LogFactory.getLog(Version.class); |
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private static final long serialVersionUID = 4726973040107711788L; |
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static { |
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80 | 1 | final Properties props = new Properties(); |
81 | 1 | InputStream in = null; |
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try { |
83 | 1 | in = Version.class |
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.getResourceAsStream("/META-INF/maven/com.allanbank/" |
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+ "mongodb-async-driver/pom.properties"); |
86 | 1 | if (in != null) { |
87 | 0 | props.load(in); |
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} |
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} |
90 | 0 | catch (final IOException error) { |
91 | 0 | LOG.info("Could not read the version information for the driver."); |
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} |
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finally { |
94 | 1 | IOUtils.close(in); |
95 | 1 | } |
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97 | 1 | VERSION = parse(props.getProperty("version", "0-DEVELOPMENT")); |
98 | 1 | UNKNOWN = new Version(new int[0], "UNKNOWN"); |
99 | 1 | } |
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public static Version earlier(final Version lhs, final Version rhs) { |
113 | 228 | if ((lhs == null) || ((rhs != null) && (lhs.compareTo(rhs) > 0))) { |
114 | 159 | return rhs; |
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} |
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117 | 69 | return lhs; |
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} |
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public static Version forWireVersion(final int wireVersion) { |
132 | 13 | Version result = null; |
133 | 13 | if (wireVersion >= 2) { |
134 | 6 | result = VERSION_2_5_4; |
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} |
136 | 7 | else if (wireVersion == 1) { |
137 | 4 | result = VERSION_2_5_2; |
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} |
139 | 3 | else if (wireVersion == 0) { |
140 | 1 | result = VERSION_2_4; |
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} |
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143 | 13 | return result; |
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} |
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public static Version later(final Version lhs, final Version rhs) { |
158 | 259 | if ((lhs == null) || ((rhs != null) && (lhs.compareTo(rhs) < 0))) { |
159 | 186 | return rhs; |
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} |
161 | 73 | return lhs; |
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} |
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public static Version parse(final List<NumericElement> versionArray) { |
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174 | 103 | final int[] version = new int[versionArray.size()]; |
175 | 412 | for (int i = 0; i < version.length; ++i) { |
176 | 309 | version[i] = versionArray.get(i).getIntValue(); |
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} |
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179 | 103 | return new Version(version, null); |
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} |
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public static Version parse(final String version) { |
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191 | 1025 | final String[] tokens = version.split("\\."); |
192 | 1025 | final int[] versions = new int[tokens.length]; |
193 | 1025 | String suffix = ""; |
194 | 2572 | for (int i = 0; i < tokens.length; ++i) { |
195 | 1547 | String token = tokens[i]; |
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198 | 1547 | if (i == (tokens.length - 1)) { |
199 | 1025 | final int dashIndex = token.indexOf('-'); |
200 | 1025 | if (dashIndex >= 0) { |
201 | 197 | suffix = token.substring(dashIndex + 1); |
202 | 197 | token = token.substring(0, dashIndex); |
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} |
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} |
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try { |
207 | 1547 | versions[i] = Integer.parseInt(token); |
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} |
209 | 40 | catch (final NumberFormatException nfe) { |
210 | 40 | LOG.debug( |
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"Could not parse version string token ('{}') from version '{}'.", |
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token, version); |
213 | 1507 | } |
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} |
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216 | 1025 | return new Version(versions, suffix); |
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} |
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private final String mySuffix; |
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private final int[] myVersion; |
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234 | 1129 | private Version(final int[] version, final String suffix) { |
235 | 1129 | myVersion = version.clone(); |
236 | 1129 | mySuffix = (suffix != null) ? suffix : ""; |
237 | 1129 | } |
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@Override |
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public int compareTo(final Version other) { |
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248 | 381 | int compare = 0; |
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251 | 381 | if (UNKNOWN.equals(this)) { |
252 | 63 | compare = UNKNOWN.equals(other) ? 0 : 1; |
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} |
254 | 318 | else if (UNKNOWN.equals(other)) { |
255 | 63 | compare = -1; |
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} |
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258 | 381 | final int fields = Math.min(myVersion.length, other.myVersion.length); |
259 | 863 | for (int i = 0; (compare == 0) && (i < fields); ++i) { |
260 | 482 | compare = compare(myVersion[i], other.myVersion[i]); |
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} |
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263 | 381 | if (compare == 0) { |
264 | 78 | compare = compare(myVersion.length, other.myVersion.length); |
265 | 78 | if (compare == 0) { |
266 | 60 | compare = mySuffix.compareTo(other.mySuffix); |
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} |
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} |
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270 | 381 | return compare; |
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} |
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@Override |
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public boolean equals(final Object object) { |
284 | 5335 | boolean result = false; |
285 | 5335 | if (this == object) { |
286 | 723 | result = true; |
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} |
288 | 4612 | else if ((object != null) && (getClass() == object.getClass())) { |
289 | 4594 | final Version other = (Version) object; |
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291 | 4594 | result = mySuffix.equals(other.mySuffix) |
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&& Arrays.equals(myVersion, other.myVersion); |
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} |
294 | 5335 | return result; |
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} |
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@Override |
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public int hashCode() { |
304 | 13050 | int result = 1; |
305 | 13050 | result = (31 * result) + mySuffix.hashCode(); |
306 | 13050 | result = (31 * result) + Arrays.hashCode(myVersion); |
307 | 13050 | return result; |
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} |
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@Override |
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public String toString() { |
318 | 4787 | final StringBuilder builder = new StringBuilder(); |
319 | 9990 | for (int i = 0; i < myVersion.length; ++i) { |
320 | 5203 | if (i != 0) { |
321 | 2674 | builder.append('.'); |
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} |
323 | 5203 | builder.append(String.valueOf(myVersion[i])); |
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} |
325 | 4787 | if (!mySuffix.isEmpty()) { |
326 | 2344 | if (myVersion.length > 0) { |
327 | 86 | builder.append('-'); |
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} |
329 | 2344 | builder.append(mySuffix); |
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} |
331 | 4787 | return builder.toString(); |
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} |
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protected int compare(final int x, final int y) { |
352 | 560 | return (x < y) ? -1 : ((x == y) ? 0 : 1); |
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} |
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} |