Github user ottobackwards commented on a diff in the pull request: https://github.com/apache/metron/pull/530#discussion_r132284429 --- Diff: bundles-lib/src/main/java/org/apache/metron/bundles/bundle/BundleCoordinates.java --- @@ -0,0 +1,93 @@ +/* + * 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. + */ +package org.apache.metron.bundles.bundle; + +/** + * The coordinates of a bundle (group, artifact, version). + */ +public class BundleCoordinates { + + public static final String DEFAULT_GROUP = "default"; + public static final String DEFAULT_VERSION = "unversioned"; + + public static final BundleCoordinates UNKNOWN_COORDINATE = new BundleCoordinates(DEFAULT_GROUP, "unknown", DEFAULT_VERSION); + + private final String group; + private final String id; + private final String version; + private final String coordinate; + + public BundleCoordinates(final String group, final String id, final String version) { + this.group = isBlank(group) ? DEFAULT_GROUP : group; + this.id = id; + this.version = isBlank(version) ? DEFAULT_VERSION : version; + + if (isBlank(id)) { + throw new IllegalStateException("Id is required for BundleCoordinates"); + } + + if(this.group.contains(":") || this.id.contains(":") || this.version.contains(":")) { + throw new IllegalStateException(String.format("Invalid coordinates: cannot contain : character group[%s] id[%s] version[%s]",this.group,this.id,this.version)); + } + this.coordinate = this.group + ":" + this.id + ":" + this.version; + } + + private boolean isBlank(String str) { + return str == null || str.trim().length() == 0; + } + + public String getGroup() { + return group; + } + + public String getId() { + return id; + } + + public String getVersion() { + return version; + } + + public final String getCoordinate() { --- End diff -- done
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