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69 changes: 69 additions & 0 deletions
69
json-unit-core/src/main/java/net/javacrumbs/jsonunit/core/internal/Normalizer.java
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Original file line number | Diff line number | Diff line change |
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package net.javacrumbs.jsonunit.core.internal; | ||
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import static java.util.Comparator.comparing; | ||
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import java.util.Iterator; | ||
import java.util.Spliterators; | ||
import java.util.stream.Stream; | ||
import java.util.stream.StreamSupport; | ||
import net.javacrumbs.jsonunit.core.internal.Node.KeyValue; | ||
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class Normalizer { | ||
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private static int depth = 2; | ||
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static String toNormalizedString(Node node) { | ||
StringBuilder sb = new StringBuilder(); | ||
normalize(node, sb, 0); | ||
return sb.toString(); | ||
} | ||
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private static void normalize(Node node, StringBuilder sb, int indent) { | ||
switch (node.getNodeType()) { | ||
case OBJECT -> normalizeObject(node, sb, indent); | ||
case ARRAY -> normalizeArray(node, sb, indent); | ||
case STRING -> sb.append('\"').append(node).append('"'); | ||
default -> sb.append(node); | ||
} | ||
} | ||
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private static void normalizeArray(Node node, StringBuilder sb, int indent) { | ||
sb.append("[\n"); | ||
Iterator<Node> elements = node.arrayElements(); | ||
while (elements.hasNext()) { | ||
var element = elements.next(); | ||
addIndent(sb, indent + depth); | ||
normalize(element, sb, indent + depth); | ||
if (elements.hasNext()) sb.append(","); | ||
sb.append('\n'); | ||
} | ||
addIndent(sb, indent); | ||
sb.append("]"); | ||
} | ||
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private static void normalizeObject(Node node, StringBuilder sb, int indent) { | ||
sb.append("{\n"); | ||
Iterator<KeyValue> sortedValues = | ||
stream(node.fields()).sorted(comparing(KeyValue::getKey)).iterator(); | ||
while (sortedValues.hasNext()) { | ||
var keyValue = sortedValues.next(); | ||
addIndent(sb, indent + depth); | ||
sb.append('"').append(keyValue.getKey()).append("\": "); | ||
normalize(keyValue.getValue(), sb, indent + depth); | ||
if (sortedValues.hasNext()) sb.append(","); | ||
sb.append('\n'); | ||
} | ||
addIndent(sb, indent); | ||
sb.append("}"); | ||
} | ||
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private static void addIndent(StringBuilder sb, int indent) { | ||
for (int i = 0; i < indent; i++) { | ||
sb.append(' '); | ||
} | ||
} | ||
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private static <T> Stream<T> stream(Iterator<T> iterator) { | ||
return StreamSupport.stream(Spliterators.spliteratorUnknownSize(iterator, 0), false); | ||
} | ||
} |
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