Removes jackson-utils dependency. #19
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,126 @@ | ||
| /* | ||
| * 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 | ||
| */ | ||
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| package com.github.fge.jsonpatch; | ||
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| import com.fasterxml.jackson.core.JsonPointer; | ||
| import com.fasterxml.jackson.databind.DeserializationFeature; | ||
| import com.fasterxml.jackson.databind.ObjectMapper; | ||
| import com.fasterxml.jackson.databind.ObjectReader; | ||
| import com.fasterxml.jackson.databind.SerializationFeature; | ||
| import com.fasterxml.jackson.databind.node.JsonNodeFactory; | ||
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| public final class JacksonUtils { | ||
|
Author
There was a problem hiding this comment. This class contains methods that does not implement natively the Jackson JsonPointer class. |
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| private final static JsonNodeFactory FACTORY = JsonNodeFactory.instance; | ||
| private final static int NO_SLASH = -1; | ||
| private final static ObjectReader READER; | ||
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| static { | ||
| final ObjectMapper mapper = newMapper(); | ||
| READER = mapper.reader(); | ||
| } | ||
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| private JacksonUtils() | ||
| { | ||
| } | ||
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| public final static ObjectMapper newMapper() { | ||
| return new ObjectMapper().setNodeFactory(FACTORY) | ||
| .enable(DeserializationFeature.USE_BIG_DECIMAL_FOR_FLOATS) | ||
| .enable(SerializationFeature.WRITE_BIGDECIMAL_AS_PLAIN) | ||
| .enable(SerializationFeature.INDENT_OUTPUT); | ||
| } | ||
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| /** | ||
| * Return a preconfigured {@link ObjectReader} to read JSON inputs | ||
| * | ||
| * @return the reader | ||
| * @see #newMapper() | ||
| */ | ||
| public static ObjectReader getReader() | ||
| { | ||
| return READER; | ||
| } | ||
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| /** | ||
| * Return a preconfigured {@link JsonNodeFactory} to generate JSON data as | ||
| * {@link com.fasterxml.jackson.databind.JsonNode}s | ||
| * | ||
| * @return the factory | ||
| */ | ||
| public final static JsonNodeFactory nodeFactory() | ||
| { | ||
| return FACTORY; | ||
| } | ||
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| public final static String getLast(JsonPointer jsonPointer) | ||
| { | ||
| String representation = jsonPointer.toString(); | ||
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| if(representation == null) return ""; | ||
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| int slashPosition = -1; | ||
| if((slashPosition = representation.lastIndexOf('/')) != -1) | ||
| { | ||
| return representation.substring(slashPosition+1); | ||
| } | ||
| else | ||
| { | ||
| return representation; | ||
| } | ||
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| } | ||
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| public final static JsonPointer empty() | ||
| { | ||
| return JsonPointer.compile(""); | ||
| } | ||
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| public final static JsonPointer head(JsonPointer jsonPointer) | ||
| { | ||
| String pointer = jsonPointer.toString(); | ||
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| int lastSlash = pointer.lastIndexOf('/'); | ||
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| if(lastSlash == NO_SLASH) | ||
| { | ||
| return empty(); | ||
| } | ||
| else | ||
| { | ||
| return JsonPointer.compile(pointer.substring(0, lastSlash)); | ||
| } | ||
| } | ||
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| public final static JsonPointer append(JsonPointer pointer, String raw) | ||
| { | ||
| String p = pointer.toString(); | ||
| return JsonPointer.compile(p + "/" + raw); | ||
| } | ||
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| public final static JsonPointer append(JsonPointer pointer, int raw) | ||
| { | ||
| String p = pointer.toString(); | ||
| return JsonPointer.compile(p + "/" + Integer.toString(raw)); | ||
| } | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,132 @@ | ||
| /* | ||
| * 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 | ||
| */ | ||
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| package com.github.fge.jsonpatch; | ||
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| import com.fasterxml.jackson.databind.JsonNode; | ||
| import com.fasterxml.jackson.databind.node.JsonNodeType; | ||
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| import java.util.HashSet; | ||
| import java.util.Iterator; | ||
| import java.util.Set; | ||
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| public class JsonNumEquals | ||
|
Author
There was a problem hiding this comment. Equivalence class but without dependency to Guava. |
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| { | ||
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| public static boolean equivalent(final JsonNode a, final JsonNode b) | ||
| { | ||
| /* | ||
| * If both are numbers, delegate to the helper method | ||
| */ | ||
| if (a.isNumber() && b.isNumber()) | ||
| return numEquals(a, b); | ||
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| final JsonNodeType typeA = a.getNodeType(); | ||
| final JsonNodeType typeB = b.getNodeType(); | ||
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| /* | ||
| * If they are of different types, no dice | ||
| */ | ||
| if (typeA != typeB) | ||
| return false; | ||
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| /* | ||
| * For all other primitive types than numbers, trust JsonNode | ||
| */ | ||
| if (!a.isContainerNode()) | ||
| return a.equals(b); | ||
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| /* | ||
| * OK, so they are containers (either both arrays or objects due to the | ||
| * test on types above). They are obviously not equal if they do not | ||
| * have the same number of elements/members. | ||
| */ | ||
| if (a.size() != b.size()) | ||
| return false; | ||
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| /* | ||
| * Delegate to the appropriate method according to their type. | ||
| */ | ||
| return typeA == JsonNodeType.ARRAY ? arrayEquals(a, b) : objectEquals(a, b); | ||
| } | ||
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| private static boolean numEquals(final JsonNode a, final JsonNode b) | ||
| { | ||
| /* | ||
| * If both numbers are integers, delegate to JsonNode. | ||
| */ | ||
| if (a.isIntegralNumber() && b.isIntegralNumber()) | ||
| return a.equals(b); | ||
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| /* | ||
| * Otherwise, compare decimal values. | ||
| */ | ||
| return a.decimalValue().compareTo(b.decimalValue()) == 0; | ||
| } | ||
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| private static boolean arrayEquals(final JsonNode a, final JsonNode b) | ||
| { | ||
| /* | ||
| * We are guaranteed here that arrays are the same size. | ||
| */ | ||
| final int size = a.size(); | ||
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| for (int i = 0; i < size; i++) | ||
| if (!equivalent(a.get(i), b.get(i))) | ||
| return false; | ||
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| return true; | ||
| } | ||
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| private static boolean objectEquals(final JsonNode a, final JsonNode b) | ||
| { | ||
| /* | ||
| * Grab the key set from the first node | ||
| */ | ||
| final Set<String> keys = newHashSet(a.fieldNames()); | ||
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| /* | ||
| * Grab the key set from the second node, and see if both sets are the | ||
| * same. If not, objects are not equal, no need to check for children. | ||
| */ | ||
| final Set<String> set = newHashSet(b.fieldNames()); | ||
| if (!set.equals(keys)) | ||
| return false; | ||
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| /* | ||
| * Test each member individually. | ||
| */ | ||
| for (final String key: keys) | ||
| if (!equivalent(a.get(key), b.get(key))) | ||
| return false; | ||
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| return true; | ||
| } | ||
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| private static Set<String> newHashSet(Iterator<String> fields) { | ||
| final Set<String> elements = new HashSet<String>(); | ||
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| while(fields.hasNext()) { | ||
| elements.add(fields.next()); | ||
| } | ||
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| return elements; | ||
| } | ||
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| } | ||
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Jackson JsonPointer does not have an empty method. For this reason we created an empty JsonPointer.