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Added support of Java 9+ versions schema to Launch4j and Head
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| package net.sf.launch4j.config; | ||
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| /** | ||
| * This class will abstract application from JRE versioning schema and provide | ||
| * comparing capabilities | ||
| * | ||
| * @author sergeyk | ||
| * | ||
| */ | ||
| public class JreVersion implements Comparable<JreVersion> { | ||
| private int x1; | ||
| private int x2; | ||
| private int x3; | ||
| private int x4; | ||
|
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| public static JreVersion parseString(String versionStr) { | ||
| JreVersion ret = new JreVersion(); | ||
| if (versionStr == null || versionStr.trim().length() == 0) { | ||
| return ret; | ||
| } | ||
| if (!versionStr.matches(Jre.VERSION_PATTERN)) { | ||
| // NOTE: This is actually shouldn't happen because version format had to be | ||
| // checked by Jre#checkInvariants BEFORE calling this method | ||
| throw new IllegalArgumentException("JRE version is not in a right format."); | ||
| } | ||
|
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| String[] parts = versionStr.split("[\\._]"); | ||
| int first = Integer.parseInt(parts[0]); | ||
| if (first >= 9) { | ||
| // java 9+ version schema | ||
| ret.x1 = 1; | ||
| ret.x2 = first; | ||
| if (parts.length >= 2) { | ||
| ret.x3 = Integer.parseInt(parts[1]); | ||
| if (parts.length >= 3) { | ||
| ret.x4 = Integer.parseInt(parts[2]); | ||
| } | ||
| } | ||
| } else { | ||
| // java <= 1.8 version schema | ||
| ret.x1 = first; | ||
|
|
||
| ret.x2 = Integer.parseInt(parts[1]); | ||
| ret.x3 = Integer.parseInt(parts[2]); | ||
| if (parts.length == 4) { | ||
| ret.x4 = Integer.parseInt(parts[3]); | ||
| } | ||
| } | ||
|
|
||
| return ret; | ||
| } | ||
|
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| @Override | ||
| public String toString() { | ||
| if (x2 >= 9) { | ||
| return "" + x2 + "." + x3 + "." + x4; | ||
| } | ||
|
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| return "" + x1 + "." + x2 + "." + x3 + (x4 > 0 ? "_" + x4 : ""); | ||
| } | ||
|
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| @Override | ||
| public int hashCode() { | ||
| final int prime = 31; | ||
| int result = 1; | ||
| result = prime * result + x1; | ||
| result = prime * result + x2; | ||
| result = prime * result + x3; | ||
| result = prime * result + x4; | ||
| return result; | ||
| } | ||
|
|
||
| @Override | ||
| public boolean equals(Object obj) { | ||
| if (this == obj) { | ||
| return true; | ||
| } | ||
| if (obj == null) { | ||
| return false; | ||
| } | ||
| if (getClass() != obj.getClass()) { | ||
| return false; | ||
| } | ||
| JreVersion other = (JreVersion) obj; | ||
| if (x1 != other.x1) { | ||
| return false; | ||
| } | ||
| if (x2 != other.x2) { | ||
| return false; | ||
| } | ||
| if (x3 != other.x3) { | ||
| return false; | ||
| } | ||
| if (x4 != other.x4) { | ||
| return false; | ||
| } | ||
| return true; | ||
| } | ||
|
|
||
| @Override | ||
| public int compareTo(JreVersion o) { | ||
| if (this.equals(o)) { | ||
| return 0; | ||
| } | ||
|
|
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| if (x1 != o.x1) { | ||
| return x1 - o.x1; | ||
| } | ||
| if (x2 != o.x2) { | ||
| return x2 - o.x2; | ||
| } | ||
| if (x3 != o.x3) { | ||
| return x3 - o.x3; | ||
| } | ||
| if (x4 != o.x4) { | ||
| return x4 - o.x4; | ||
| } | ||
|
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| throw new IllegalStateException("If you see this exception it means JreVersion::equals() method is buggy"); | ||
| } | ||
| } |