Java tutorial
/* * Copyright (c) 2014, Francis Galiegue (fgaliegue@gmail.com) * * This software is dual-licensed under: * * - the Lesser General Public License (LGPL) version 3.0 or, at your option, any * later version; * - the Apache Software License (ASL) version 2.0. * * The text of this file and of both licenses is available at the root of this * project or, if you have the jar distribution, in directory META-INF/, under * the names LGPL-3.0.txt and ASL-2.0.txt respectively. * * Direct link to the sources: * * - LGPL 3.0: https://www.gnu.org/licenses/lgpl-3.0.txt * - ASL 2.0: http://www.apache.org/licenses/LICENSE-2.0.txt */ package com.github.fge.jsonschema.core.keyword.syntax.checkers.draftv3; import com.fasterxml.jackson.databind.JsonNode; import com.github.fge.jackson.NodeType; import com.github.fge.jsonschema.core.exceptions.ProcessingException; import com.github.fge.jsonschema.core.report.ProcessingReport; import com.github.fge.jsonschema.core.keyword.syntax.checkers.SyntaxChecker; import com.github.fge.jsonschema.core.keyword.syntax.checkers.helpers.DependenciesSyntaxChecker; import com.github.fge.jsonschema.core.tree.SchemaTree; import com.github.fge.msgsimple.bundle.MessageBundle; import com.google.common.base.Equivalence; import com.google.common.collect.Sets; import java.util.EnumSet; import java.util.Set; /** * Syntax checker for draft v3's {@code dependencies} keyword */ public final class DraftV3DependenciesSyntaxChecker extends DependenciesSyntaxChecker { private static final SyntaxChecker INSTANCE = new DraftV3DependenciesSyntaxChecker(); public static SyntaxChecker getInstance() { return INSTANCE; } private DraftV3DependenciesSyntaxChecker() { super(NodeType.ARRAY, NodeType.STRING); } @Override protected void checkDependency(final ProcessingReport report, final MessageBundle bundle, final String name, final SchemaTree tree) throws ProcessingException { final JsonNode node = getNode(tree).get(name); NodeType type; type = NodeType.getNodeType(node); if (type == NodeType.STRING) return; if (type != NodeType.ARRAY) { report.error( newMsg(tree, bundle, "common.dependencies.value.incorrectType").putArgument("property", name) .putArgument("expected", dependencyTypes).putArgument("found", type)); return; } final int size = node.size(); /* * Yep, in draft v3, nothing prevents a dependency array from being * empty! This is stupid, so at least warn the user. */ if (size == 0) { report.warn(newMsg(tree, bundle, "common.array.empty").put("property", name)); return; } final Set<Equivalence.Wrapper<JsonNode>> set = Sets.newHashSet(); JsonNode element; boolean uniqueElements = true; for (int index = 0; index < size; index++) { element = node.get(index); type = NodeType.getNodeType(element); uniqueElements = set.add(EQUIVALENCE.wrap(element)); if (type == NodeType.STRING) continue; report.error(newMsg(tree, bundle, "common.array.element.incorrectType").put("property", name) .putArgument("index", index).putArgument("expected", EnumSet.of(NodeType.STRING)) .putArgument("found", type)); } /* * Similarly, there is nothing preventing duplicates. Equally stupid, * so warn the user. */ if (!uniqueElements) report.warn(newMsg(tree, bundle, "common.array.duplicateElements").put("property", name)); } }