removed unused JsonFormatter classes.
This commit is contained in:
Inderjeet Singh
parent
dea7ab89fe
commit
ad7bd1f465
@ -34,7 +34,7 @@ import java.util.Set;
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* @author Inderjeet Singh
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* @author Joel Leitch
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*/
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class Escaper {
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final class Escaper {
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private static final char[] HEX_CHARS = {
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'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
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@ -1,150 +0,0 @@
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/*
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* Copyright (C) 2008 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.gson;
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import java.io.IOException;
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/**
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* Formats Json in a compact way eliminating all unnecessary whitespace.
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*
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* @author Inderjeet Singh
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*/
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final class JsonCompactFormatter implements JsonFormatter {
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private static class FormattingVisitor implements JsonElementVisitor {
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private final Appendable writer;
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private final Escaper escaper;
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private final boolean serializeNulls;
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FormattingVisitor(Appendable writer, Escaper escaper, boolean serializeNulls) {
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this.writer = writer;
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this.escaper = escaper;
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this.serializeNulls = serializeNulls;
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}
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public void visitPrimitive(JsonPrimitive primitive) throws IOException {
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primitive.toString(writer, escaper);
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}
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public void visitNull() throws IOException {
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writer.append("null");
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}
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public void startArray(JsonArray array) throws IOException {
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writer.append('[');
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}
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public void visitArrayMember(JsonArray parent, JsonPrimitive member,
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boolean isFirst) throws IOException {
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if (!isFirst) {
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writer.append(',');
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}
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member.toString(writer, escaper);
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}
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public void visitArrayMember(JsonArray parent, JsonArray member,
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boolean isFirst) throws IOException {
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if (!isFirst) {
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writer.append(',');
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}
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}
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public void visitArrayMember(JsonArray parent, JsonObject member,
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boolean isFirst) throws IOException {
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if (!isFirst) {
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writer.append(',');
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}
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}
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public void visitNullArrayMember(JsonArray parent, boolean isFirst) throws IOException {
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if (!isFirst) {
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writer.append(',');
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}
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}
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public void endArray(JsonArray array) throws IOException {
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writer.append(']');
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}
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public void startObject(JsonObject object) throws IOException {
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writer.append('{');
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}
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public void visitObjectMember(JsonObject parent, String memberName, JsonPrimitive member,
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boolean isFirst) throws IOException {
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if (!isFirst) {
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writer.append(',');
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}
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writer.append('"');
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writer.append(escaper.escapeJsonString(memberName));
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writer.append("\":");
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member.toString(writer, escaper);
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}
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public void visitObjectMember(JsonObject parent, String memberName, JsonArray member,
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boolean isFirst) throws IOException {
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if (!isFirst) {
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writer.append(',');
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}
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writer.append('"');
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writer.append(escaper.escapeJsonString(memberName));
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writer.append("\":");
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}
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public void visitObjectMember(JsonObject parent, String memberName, JsonObject member,
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boolean isFirst) throws IOException {
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if (!isFirst) {
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writer.append(',');
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}
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writer.append('"');
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writer.append(escaper.escapeJsonString(memberName));
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writer.append("\":");
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}
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public void visitNullObjectMember(JsonObject parent, String memberName,
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boolean isFirst) throws IOException {
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if (serializeNulls) {
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visitObjectMember(parent, memberName, (JsonObject) null, isFirst);
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}
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}
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public void endObject(JsonObject object) throws IOException {
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writer.append('}');
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}
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}
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private final boolean escapeHtmlChars;
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JsonCompactFormatter() {
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this(true);
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}
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JsonCompactFormatter(boolean escapeHtmlChars) {
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this.escapeHtmlChars = escapeHtmlChars;
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}
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public void format(JsonElement root, Appendable writer,
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boolean serializeNulls) throws IOException {
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if (root == null) {
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return;
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}
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JsonElementVisitor visitor = new FormattingVisitor(
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writer, new Escaper(escapeHtmlChars), serializeNulls);
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JsonTreeNavigator navigator = new JsonTreeNavigator(visitor, serializeNulls);
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navigator.navigate(root);
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}
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}
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@ -1,38 +0,0 @@
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/*
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* Copyright (C) 2008 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.gson;
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import java.io.IOException;
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/**
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* Common interface for a formatter for Json.
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*
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* @author Inderjeet Singh
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*/
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interface JsonFormatter {
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/**
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* Writes a formatted version of the Json corresponding to
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* the specified Json.
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*
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* @param root the root of the Json tree.
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* @param writer the writer to output the formatter JSON to.
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* @param serializeNulls serialize null values in the output.
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*/
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public void format(JsonElement root, Appendable writer,
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boolean serializeNulls) throws IOException;
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}
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@ -1,252 +0,0 @@
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/*
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* Copyright (C) 2008 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.gson;
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import java.io.IOException;
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/**
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* Formats Json in a nicely indented way with a specified print margin.
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* This printer tries to keep elements on the same line as much as possible
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* while respecting right margin.
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*
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* @author Inderjeet Singh
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*/
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final class JsonPrintFormatter implements JsonFormatter {
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private final int printMargin;
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private final int indentationSize;
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private final int rightMargin;
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private final boolean escapeHtmlChars;
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public static final int DEFAULT_PRINT_MARGIN = 80;
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public static final int DEFAULT_INDENTATION_SIZE = 2;
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public static final int DEFAULT_RIGHT_MARGIN = 4;
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JsonPrintFormatter() {
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this(true);
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}
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JsonPrintFormatter(boolean escapeHtmlChars) {
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this(DEFAULT_PRINT_MARGIN, DEFAULT_INDENTATION_SIZE, DEFAULT_RIGHT_MARGIN, escapeHtmlChars);
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}
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JsonPrintFormatter(int printMargin, int indentationSize, int rightMargin,
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boolean escapeHtmlChars) {
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this.printMargin = printMargin;
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this.indentationSize = indentationSize;
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this.rightMargin = rightMargin;
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this.escapeHtmlChars = escapeHtmlChars;
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}
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private class JsonWriter {
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private final Appendable writer;
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private StringBuilder line;
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private int level;
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JsonWriter(Appendable writer) {
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this.writer = writer;
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level = 0;
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line = new StringBuilder();
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}
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void key(String key) throws IOException {
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breakLineIfThisToNextExceedsLimit(key.length() + 2);
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getLine().append('"');
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getLine().append(key);
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getLine().append('"');
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}
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void value(String value) throws IOException {
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breakLineIfThisToNextExceedsLimit(value.length() + 2);
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getLine().append(value);
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}
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void fieldSeparator() throws IOException {
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getLine().append(':');
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breakLineIfNeeded();
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}
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void elementSeparator() throws IOException {
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getLine().append(',');
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breakLineIfNeeded();
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}
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void beginObject() throws IOException {
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breakLineIfNeeded();
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getLine().append('{');
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++level;
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}
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void endObject() {
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getLine().append('}');
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--level;
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}
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void beginArray() throws IOException {
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breakLineIfNeeded();
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getLine().append('[');
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++level;
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}
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void endArray() {
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getLine().append(']');
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--level;
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}
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private void breakLineIfNeeded() throws IOException {
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breakLineIfThisToNextExceedsLimit(0);
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}
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private void breakLineIfThisToNextExceedsLimit(int nextLength) throws IOException {
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if (getLine().length() + nextLength > printMargin - rightMargin) {
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finishLine();
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}
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}
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private void finishLine() throws IOException {
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if (line != null) {
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writer.append(line).append("\n");
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}
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line = null;
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}
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private StringBuilder getLine() {
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if (line == null) {
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createNewLine();
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}
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return line;
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}
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private void createNewLine() {
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line = new StringBuilder();
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for (int i = 0; i < level; ++i) {
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for (int j = 0; j < indentationSize; ++j) {
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line.append(' ');
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}
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}
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}
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}
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private class PrintFormattingVisitor implements JsonElementVisitor {
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private final JsonWriter writer;
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private final Escaper escaper;
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private final boolean serializeNulls;
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PrintFormattingVisitor(JsonWriter writer, Escaper escaper, boolean serializeNulls) {
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this.writer = writer;
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this.escaper = escaper;
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this.serializeNulls = serializeNulls;
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}
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private void addCommaCheckingFirst(boolean first) throws IOException {
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if (!first) {
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writer.elementSeparator();
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}
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}
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public void startArray(JsonArray array) throws IOException {
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writer.beginArray();
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}
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public void visitArrayMember(JsonArray parent, JsonPrimitive member,
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boolean isFirst) throws IOException {
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addCommaCheckingFirst(isFirst);
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writer.value(escapeJsonPrimitive(member));
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}
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public void visitArrayMember(JsonArray parent, JsonArray member,
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boolean first) throws IOException {
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addCommaCheckingFirst(first);
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}
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public void visitArrayMember(JsonArray parent, JsonObject member,
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boolean first) throws IOException {
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addCommaCheckingFirst(first);
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}
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public void visitNullArrayMember(JsonArray parent, boolean isFirst) throws IOException {
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addCommaCheckingFirst(isFirst);
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}
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public void endArray(JsonArray array) {
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writer.endArray();
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}
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public void startObject(JsonObject object) throws IOException {
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writer.beginObject();
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}
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public void visitObjectMember(JsonObject parent, String memberName, JsonPrimitive member,
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boolean isFirst) throws IOException {
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addCommaCheckingFirst(isFirst);
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writer.key(escaper.escapeJsonString(memberName));
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writer.fieldSeparator();
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writer.value(escapeJsonPrimitive(member));
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}
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public void visitObjectMember(JsonObject parent, String memberName, JsonArray member,
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boolean isFirst) throws IOException {
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addCommaCheckingFirst(isFirst);
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writer.key(escaper.escapeJsonString(memberName));
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writer.fieldSeparator();
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}
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public void visitObjectMember(JsonObject parent, String memberName, JsonObject member,
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boolean isFirst) throws IOException {
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addCommaCheckingFirst(isFirst);
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writer.key(escaper.escapeJsonString(memberName));
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writer.fieldSeparator();
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}
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public void visitNullObjectMember(JsonObject parent, String memberName,
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boolean isFirst) throws IOException {
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if (serializeNulls) {
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visitObjectMember(parent, memberName, (JsonObject) null, isFirst);
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}
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}
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public void endObject(JsonObject object) {
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writer.endObject();
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}
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public void visitPrimitive(JsonPrimitive primitive) throws IOException {
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writer.value(escapeJsonPrimitive(primitive));
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}
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public void visitNull() throws IOException {
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writer.value("null");
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}
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private String escapeJsonPrimitive(JsonPrimitive member) throws IOException {
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StringBuilder builder = new StringBuilder();
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member.toString(builder, escaper);
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return builder.toString();
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}
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}
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public void format(JsonElement root, Appendable writer,
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boolean serializeNulls) throws IOException {
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if (root == null) {
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return;
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}
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JsonWriter jsonWriter = new JsonWriter(writer);
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JsonElementVisitor visitor = new PrintFormattingVisitor(
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jsonWriter, new Escaper(escapeHtmlChars), serializeNulls);
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JsonTreeNavigator navigator = new JsonTreeNavigator(visitor, serializeNulls);
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navigator.navigate(root);
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jsonWriter.finishLine();
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}
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}
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