Java tutorial
/* * Copyright (c) 2013, Francis Galiegue <fgaliegue@gmail.com> * * This program is free software: you can redistribute it and/or modify * it under the terms of the Lesser GNU General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * Lesser GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package com.github.fge.jsonschema.syntax.checkers.draftv4; import com.fasterxml.jackson.databind.JsonNode; import com.github.fge.jackson.JsonNumEquals; import com.github.fge.jackson.NodeType; import com.github.fge.jackson.jsonpointer.JsonPointer; import com.github.fge.jsonschema.exceptions.ProcessingException; import com.github.fge.jsonschema.report.ProcessingReport; import com.github.fge.jsonschema.syntax.checkers.AbstractSyntaxChecker; import com.github.fge.jsonschema.syntax.checkers.SyntaxChecker; import com.github.fge.jsonschema.tree.SchemaTree; import com.google.common.base.Equivalence; import com.google.common.collect.Sets; import java.util.Collection; import java.util.EnumSet; import java.util.Set; /** * Syntax checker for draft v4's {@code type} keyword */ public final class DraftV4TypeSyntaxChecker extends AbstractSyntaxChecker { private static final EnumSet<NodeType> ALL_TYPES = EnumSet.allOf(NodeType.class); private static final Equivalence<JsonNode> EQUIVALENCE = JsonNumEquals.getInstance(); private static final SyntaxChecker INSTANCE = new DraftV4TypeSyntaxChecker(); public static SyntaxChecker getInstance() { return INSTANCE; } private DraftV4TypeSyntaxChecker() { super("type", NodeType.ARRAY, NodeType.STRING); } @Override protected void checkValue(final Collection<JsonPointer> pointers, final ProcessingReport report, final SchemaTree tree) throws ProcessingException { final JsonNode node = getNode(tree); if (node.isTextual()) { final String s = node.textValue(); if (NodeType.fromName(s) == null) report.error(newMsg(tree, "incorrectPrimitiveType").put("valid", ALL_TYPES).put("found", s)); return; } final int size = node.size(); if (size == 0) { report.error(newMsg(tree, "emptyArray")); return; } final Set<Equivalence.Wrapper<JsonNode>> set = Sets.newHashSet(); JsonNode element; NodeType type; 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) { report.error(newMsg(tree, "incorrectElementType").put("index", index) .put("expected", NodeType.STRING).put("found", type)); continue; } if (NodeType.fromName(element.textValue()) == null) report.error(newMsg(tree, "incorrectPrimitiveType").put("index", index).put("valid", ALL_TYPES) .put("found", element)); } if (!uniqueElements) report.error(newMsg(tree, "elementsNotUnique")); } }