1 files changed, 192 insertions, 0 deletions
diff --git a/catalog-model/src/main/java/org/openecomp/sdc/be/model/tosca/version/Version.java b/catalog-model/src/main/java/org/openecomp/sdc/be/model/tosca/version/Version.java
new file mode 100644
index 0000000000..268ee28b96
--- /dev/null
+++ b/catalog-model/src/main/java/org/openecomp/sdc/be/model/tosca/version/Version.java
@@ -0,0 +1,192 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdc.be.model.tosca.version;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import java.util.StringTokenizer;
+import java.util.regex.Pattern;
+
+/**
+ * Default implementation of artifact versioning.
+ * 
+ * @author <a href="mailto:brett@apache.org">Brett Porter</a>
+ */
+public class Version implements Comparable<Version> {
+	private Integer majorVersion;
+
+	private Integer minorVersion;
+
+	private Integer incrementalVersion;
+
+	private Integer buildNumber;
+
+	private String qualifier;
+
+	private ComparableVersion comparable;
+
+	public Version(String version) {
+		parseVersion(version);
+	}
+
+	@Override
+	public int hashCode() {
+		return 11 + comparable.hashCode();
+	}
+
+	@Override
+	public boolean equals(Object other) {
+		if (this == other) {
+			return true;
+		}
+
+		if (!(other instanceof Version)) {
+			return false;
+		}
+
+		return compareTo((Version) other) == 0;
+	}
+
+	public int compareTo(Version otherVersion) {
+		return this.comparable.compareTo(otherVersion.comparable);
+	}
+
+	public int getMajorVersion() {
+		return majorVersion != null ? majorVersion : 0;
+	}
+
+	public int getMinorVersion() {
+		return minorVersion != null ? minorVersion : 0;
+	}
+
+	public int getIncrementalVersion() {
+		return incrementalVersion != null ? incrementalVersion : 0;
+	}
+
+	public int getBuildNumber() {
+		return buildNumber != null ? buildNumber : 0;
+	}
+
+	public String getQualifier() {
+		return qualifier;
+	}
+
+	public final void parseVersion(String version) {
+		comparable = new ComparableVersion(version);
+
+		int index = version.indexOf("-");
+
+		String part1;
+		String part2 = null;
+
+		if (index < 0) {
+			part1 = version;
+		} else {
+			part1 = version.substring(0, index);
+			part2 = version.substring(index + 1);
+		}
+
+		if (part2 != null) {
+			try {
+				if ((part2.length() == 1) || !part2.startsWith("0")) {
+					buildNumber = Integer.valueOf(part2);
+				} else {
+					qualifier = part2;
+				}
+			} catch (NumberFormatException e) {
+				qualifier = part2;
+			}
+		}
+
+		if ((!part1.contains(".")) && !part1.startsWith("0")) {
+			try {
+				majorVersion = Integer.valueOf(part1);
+			} catch (NumberFormatException e) {
+				// qualifier is the whole version, including "-"
+				qualifier = version;
+				buildNumber = null;
+			}
+		} else {
+			boolean fallback = false;
+
+			StringTokenizer tok = new StringTokenizer(part1, ".");
+			try {
+				majorVersion = getNextIntegerToken(tok);
+				if (tok.hasMoreTokens()) {
+					minorVersion = getNextIntegerToken(tok);
+				}
+				if (tok.hasMoreTokens()) {
+					incrementalVersion = getNextIntegerToken(tok);
+				}
+				if (tok.hasMoreTokens()) {
+					qualifier = tok.nextToken();
+					fallback = Pattern.compile("\\d+").matcher(qualifier).matches();
+				}
+
+				// string tokenzier won't detect these and ignores them
+				if (part1.contains("..") || part1.startsWith(".") || part1.endsWith(".")) {
+					fallback = true;
+				}
+			} catch (NumberFormatException e) {
+				fallback = true;
+			}
+
+			if (fallback) {
+				// qualifier is the whole version, including "-"
+				qualifier = version;
+				majorVersion = null;
+				minorVersion = null;
+				incrementalVersion = null;
+				buildNumber = null;
+			}
+		}
+	}
+
+	private static Integer getNextIntegerToken(StringTokenizer tok) {
+		String s = tok.nextToken();
+		if ((s.length() > 1) && s.startsWith("0")) {
+			throw new NumberFormatException("Number part has a leading 0: '" + s + "'");
+		}
+		return Integer.valueOf(s);
+	}
+
+	@Override
+	public String toString() {
+		return comparable.toString();
+	}
+}