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GeezerVison is showing github.com — utPLSQL-java-api/src/main/java/org/utplsql/api/Version.java at v3.1.8 · utPLSQL/utPLSQL-java-api

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package org.utplsql.api;
import org.utplsql.api.exception.InvalidVersionException;
import javax.annotation.Nullable;
import java.util.Map;
import java.util.Objects;
import java.util.function.Function;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Stream;
import static java.util.stream.Collectors.toMap;
/**
* Simple class to parse utPLSQL Version-information and provide the separate version-numbers
*
* @author pesse
*/
public class Version implements Comparable<Version> {
public final static Version V3_0_0 = new Version("3.0.0", 3, 0, 0, null, true);
public final static Version V3_0_1 = new Version("3.0.1", 3, 0, 1, null, true);
public final static Version V3_0_2 = new Version("3.0.2", 3, 0, 2, null, true);
public final static Version V3_0_3 = new Version("3.0.3", 3, 0, 3, null, true);
public final static Version V3_0_4 = new Version("3.0.4", 3, 0, 4, null, true);
public final static Version V3_1_0 = new Version("3.1.0", 3, 1, 0, 1847, true);
public final static Version V3_1_1 = new Version("3.1.1", 3, 1, 1, 1865, true);
public final static Version V3_1_2 = new Version("3.1.2", 3, 1, 2, 2130, true);
public final static Version V3_1_3 = new Version("3.1.3", 3, 1, 3, 2398, true);
public final static Version V3_1_4 = new Version("3.1.4", 3, 1, 4, 2223, true);
public final static Version V3_1_5 = new Version("3.1.5", 3, 1, 5, 2707, true);
public final static Version V3_1_6 = new Version("3.1.6", 3, 1, 6, 2729, true);
public final static Version V3_1_7 = new Version("3.1.7", 3, 1, 7, 3085, true);
public final static Version V3_1_8 = new Version("3.1.8", 3, 1, 8, 3188, true);
private final static Map<String, Version> knownVersions =
Stream.of(V3_0_0, V3_0_1, V3_0_2, V3_0_3, V3_0_4, V3_1_0, V3_1_1, V3_1_2, V3_1_3, V3_1_4, V3_1_5, V3_1_6, V3_1_7, V3_1_8)
.collect(toMap(Version::toString, Function.identity()));
public final static Version LATEST = V3_1_8;
private final String origString;
private final Integer major;
private final Integer minor;
private final Integer bugfix;
private final Integer build;
private final boolean valid;
private Version(String origString, @Nullable Integer major, @Nullable Integer minor, @Nullable Integer bugfix, @Nullable Integer build, boolean valid) {
this.origString = origString;
this.major = major;
this.minor = minor;
this.bugfix = bugfix;
this.build = build;
this.valid = valid;
}
/**
* Use {@link Version#create} factory method instead
* For removal
*/
@Deprecated()
public Version(String versionString) {
assert versionString != null;
Version dummy = parseVersionString(versionString);
this.origString = dummy.origString;
this.major = dummy.major;
this.minor = dummy.minor;
this.bugfix = dummy.bugfix;
this.build = dummy.build;
this.valid = dummy.valid;
}
public static Version create(final String versionString) {
String origString = Objects.requireNonNull(versionString).trim();
Version version = knownVersions.get(origString);
return version != null ? version : parseVersionString(origString);
}
private static Version parseVersionString(String origString) {
Integer major = null;
Integer minor = null;
Integer bugfix = null;
Integer build = null;
boolean valid = false;
Pattern p = Pattern.compile("([0-9]+)\\.?([0-9]+)?\\.?([0-9]+)?\\.?([0-9]+)?");
Matcher m = p.matcher(origString);
try {
if (m.find()) {
if (m.group(1) != null) {
major = Integer.valueOf(m.group(1));
}
if (m.group(2) != null) {
minor = Integer.valueOf(m.group(2));
}
if (m.group(3) != null) {
bugfix = Integer.valueOf(m.group(3));
}
if (m.group(4) != null) {
build = Integer.valueOf(m.group(4));
}
// We need a valid major version as minimum requirement for a Version object to be valid
valid = major != null;
}
} catch (NumberFormatException e) {
valid = false;
}
return new Version(origString, major, minor, bugfix, build, valid);
}
@Override
public String toString() {
return origString;
}
@Nullable
public Integer getMajor() {
return major;
}
@Nullable
public Integer getMinor() {
return minor;
}
@Nullable
public Integer getBugfix() {
return bugfix;
}
@Nullable
public Integer getBuild() {
return build;
}
public boolean isValid() {
return valid;
}
/**
* Returns a normalized form of the parsed version information
*
* @return
*/
public String getNormalizedString() {
if (isValid()) {
StringBuilder sb = new StringBuilder();
sb.append(major);
if (minor != null) {
sb.append(".").append(minor);
}
if (bugfix != null) {
sb.append(".").append(bugfix);
}
if (build != null) {
sb.append(".").append(build);
}
return sb.toString();
} else {
return "invalid";
}
}
private int compareToWithNulls(@Nullable Integer i1, @Nullable Integer i2) {
return compareToWithNulls(i1, i2, false);
}
private int compareToWithNulls(@Nullable Integer i1, @Nullable Integer i2, boolean nullMeansEqual) {
if (i1 == null && i2 == null) {
return 0;
} else if (i1 == null) {
return nullMeansEqual ? 0 : -1;
} else if (i2 == null) {
return 1;
} else {
return i1.compareTo(i2);
}
}
@Override
public int compareTo(Version o) {
return compareTo(o, false);
}
public int compareTo(Version o, boolean nullMeansEqual) {
int curResult;
if (isValid() && o.isValid()) {
curResult = compareToWithNulls(getMajor(), o.getMajor(), nullMeansEqual);
if (curResult != 0) {
return curResult;
}
curResult = compareToWithNulls(getMinor(), o.getMinor(), nullMeansEqual);
if (curResult != 0) {
return curResult;
}
curResult = compareToWithNulls(getBugfix(), o.getBugfix(), nullMeansEqual);
if (curResult != 0) {
return curResult;
}
curResult = compareToWithNulls(getBuild(), o.getBuild(), nullMeansEqual);
if (curResult != 0) {
return curResult;
}
}
return 0;
}
private void versionsAreValid(Version v) throws InvalidVersionException {
if (!isValid()) {
throw new InvalidVersionException(this);
}
if (!v.isValid()) {
throw new InvalidVersionException(v);
}
}
/**
* Compares this version to a given version and returns true if this version is greater or equal than the given one
* If one of the version parts of the base version is null, this level is assumed equal no matter the comparing level's version part
* Throws an InvalidVersionException if either this or the given version are invalid
*
* @param v Version to compare with
* @return
* @throws InvalidVersionException
*/
public boolean isGreaterOrEqualThan(Version v) throws InvalidVersionException {
versionsAreValid(v);
return compareTo(v, true) >= 0;
}
public boolean isGreaterThan(Version v) throws InvalidVersionException {
versionsAreValid(v);
return compareTo(v) > 0;
}
/**
* Compares this version to a given version and returns true if this version is less or equal than the given one
* If one of the version parts of the base version is null, this level is assumed equal no matter the comparing level's version part
* Throws an InvalidVersionException if either this or the given version are invalid
*
* @param v Version to compare with
* @return
* @throws InvalidVersionException
*/
public boolean isLessOrEqualThan(Version v) throws InvalidVersionException {
versionsAreValid(v);
return compareTo(v, true) <= 0;
}
public boolean isLessThan(Version v) throws InvalidVersionException {
versionsAreValid(v);
return compareTo(v) < 0;
}
}
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