| | |
| | | package com.qcloud.cmq.Json; |
| | | |
| | | import java.io.IOException; |
| | | import java.io.Writer; |
| | | |
| | | /* |
| | | Copyright (c) 2006 JSON.org |
| | | |
| | | Permission is hereby granted, free of charge, to any person obtaining a copy |
| | | of this software and associated documentation files (the "Software"), to deal |
| | | in the Software without restriction, including without limitation the rights |
| | | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| | | copies of the Software, and to permit persons to whom the Software is |
| | | furnished to do so, subject to the following conditions: |
| | | |
| | | The above copyright notice and this permission notice shall be included in all |
| | | copies or substantial portions of the Software. |
| | | |
| | | The Software shall be used for Good, not Evil. |
| | | |
| | | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| | | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| | | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| | | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| | | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| | | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| | | SOFTWARE. |
| | | */ |
| | | |
| | | /** |
| | | * JSONWriter provides a quick and convenient way of producing JSON text. |
| | | * The texts produced strictly conform to JSON syntax rules. No whitespace is |
| | | * added, so the results are ready for transmission or storage. Each instance of |
| | | * JSONWriter can produce one JSON text. |
| | | * <p> |
| | | * A JSONWriter instance provides a <code>value</code> method for appending |
| | | * values to the |
| | | * text, and a <code>key</code> |
| | | * method for adding keys before values in objects. There are <code>array</code> |
| | | * and <code>endArray</code> methods that make and bound array values, and |
| | | * <code>object</code> and <code>endObject</code> methods which make and bound |
| | | * object values. All of these methods return the JSONWriter instance, |
| | | * permitting a cascade style. For example, <pre> |
| | | * new JSONWriter(myWriter) |
| | | * .object() |
| | | * .key("JSON") |
| | | * .value("Hello, World!") |
| | | * .endObject();</pre> which writes <pre> |
| | | * {"JSON":"Hello, World!"}</pre> |
| | | * <p> |
| | | * The first method called must be <code>array</code> or <code>object</code>. |
| | | * There are no methods for adding commas or colons. JSONWriter adds them for |
| | | * you. Objects and arrays can be nested up to 20 levels deep. |
| | | * <p> |
| | | * This can sometimes be easier than using a JSONObject to build a string. |
| | | * @author JSON.org |
| | | * @version 2011-11-24 |
| | | */ |
| | | public class JSONWriter { |
| | | private static final int maxdepth = 200; |
| | | |
| | | /** |
| | | * The comma flag determines if a comma should be output before the next |
| | | * value. |
| | | */ |
| | | private boolean comma; |
| | | |
| | | /** |
| | | * The current mode. Values: |
| | | * 'a' (array), |
| | | * 'd' (done), |
| | | * 'i' (initial), |
| | | * 'k' (key), |
| | | * 'o' (object). |
| | | */ |
| | | protected char mode; |
| | | |
| | | /** |
| | | * The object/array stack. |
| | | */ |
| | | private final JSONObject stack[]; |
| | | |
| | | /** |
| | | * The stack top index. A value of 0 indicates that the stack is empty. |
| | | */ |
| | | private int top; |
| | | |
| | | /** |
| | | * The writer that will receive the output. |
| | | */ |
| | | protected Writer writer; |
| | | |
| | | /** |
| | | * Make a fresh JSONWriter. It can be used to build one JSON text. |
| | | */ |
| | | public JSONWriter(Writer w) { |
| | | this.comma = false; |
| | | this.mode = 'i'; |
| | | this.stack = new JSONObject[maxdepth]; |
| | | this.top = 0; |
| | | this.writer = w; |
| | | } |
| | | |
| | | /** |
| | | * Append a value. |
| | | * @param string A string value. |
| | | * @return this |
| | | * @throws JSONException If the value is out of sequence. |
| | | */ |
| | | private JSONWriter append(String string) throws JSONException { |
| | | if (string == null) { |
| | | throw new JSONException("Null pointer"); |
| | | } |
| | | if (this.mode == 'o' || this.mode == 'a') { |
| | | try { |
| | | if (this.comma && this.mode == 'a') { |
| | | this.writer.write(','); |
| | | } |
| | | this.writer.write(string); |
| | | } catch (IOException e) { |
| | | throw new JSONException(e); |
| | | } |
| | | if (this.mode == 'o') { |
| | | this.mode = 'k'; |
| | | } |
| | | this.comma = true; |
| | | return this; |
| | | } |
| | | throw new JSONException("Value out of sequence."); |
| | | } |
| | | |
| | | /** |
| | | * Begin appending a new array. All values until the balancing |
| | | * <code>endArray</code> will be appended to this array. The |
| | | * <code>endArray</code> method must be called to mark the array's end. |
| | | * @return this |
| | | * @throws JSONException If the nesting is too deep, or if the object is |
| | | * started in the wrong place (for example as a key or after the end of the |
| | | * outermost array or object). |
| | | */ |
| | | public JSONWriter array() throws JSONException { |
| | | if (this.mode == 'i' || this.mode == 'o' || this.mode == 'a') { |
| | | this.push(null); |
| | | this.append("["); |
| | | this.comma = false; |
| | | return this; |
| | | } |
| | | throw new JSONException("Misplaced array."); |
| | | } |
| | | |
| | | /** |
| | | * End something. |
| | | * @param mode Mode |
| | | * @param c Closing character |
| | | * @return this |
| | | * @throws JSONException If unbalanced. |
| | | */ |
| | | private JSONWriter end(char mode, char c) throws JSONException { |
| | | if (this.mode != mode) { |
| | | throw new JSONException(mode == 'a' |
| | | ? "Misplaced endArray." |
| | | : "Misplaced endObject."); |
| | | } |
| | | this.pop(mode); |
| | | try { |
| | | this.writer.write(c); |
| | | } catch (IOException e) { |
| | | throw new JSONException(e); |
| | | } |
| | | this.comma = true; |
| | | return this; |
| | | } |
| | | |
| | | /** |
| | | * End an array. This method most be called to balance calls to |
| | | * <code>array</code>. |
| | | * @return this |
| | | * @throws JSONException If incorrectly nested. |
| | | */ |
| | | public JSONWriter endArray() throws JSONException { |
| | | return this.end('a', ']'); |
| | | } |
| | | |
| | | /** |
| | | * End an object. This method most be called to balance calls to |
| | | * <code>object</code>. |
| | | * @return this |
| | | * @throws JSONException If incorrectly nested. |
| | | */ |
| | | public JSONWriter endObject() throws JSONException { |
| | | return this.end('k', '}'); |
| | | } |
| | | |
| | | /** |
| | | * Append a key. The key will be associated with the next value. In an |
| | | * object, every value must be preceded by a key. |
| | | * @param string A key string. |
| | | * @return this |
| | | * @throws JSONException If the key is out of place. For example, keys |
| | | * do not belong in arrays or if the key is null. |
| | | */ |
| | | public JSONWriter key(String string) throws JSONException { |
| | | if (string == null) { |
| | | throw new JSONException("Null key."); |
| | | } |
| | | if (this.mode == 'k') { |
| | | try { |
| | | this.stack[this.top - 1].putOnce(string, Boolean.TRUE); |
| | | if (this.comma) { |
| | | this.writer.write(','); |
| | | } |
| | | this.writer.write(JSONObject.quote(string)); |
| | | this.writer.write(':'); |
| | | this.comma = false; |
| | | this.mode = 'o'; |
| | | return this; |
| | | } catch (IOException e) { |
| | | throw new JSONException(e); |
| | | } |
| | | } |
| | | throw new JSONException("Misplaced key."); |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Begin appending a new object. All keys and values until the balancing |
| | | * <code>endObject</code> will be appended to this object. The |
| | | * <code>endObject</code> method must be called to mark the object's end. |
| | | * @return this |
| | | * @throws JSONException If the nesting is too deep, or if the object is |
| | | * started in the wrong place (for example as a key or after the end of the |
| | | * outermost array or object). |
| | | */ |
| | | public JSONWriter object() throws JSONException { |
| | | if (this.mode == 'i') { |
| | | this.mode = 'o'; |
| | | } |
| | | if (this.mode == 'o' || this.mode == 'a') { |
| | | this.append("{"); |
| | | this.push(new JSONObject()); |
| | | this.comma = false; |
| | | return this; |
| | | } |
| | | throw new JSONException("Misplaced object."); |
| | | |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Pop an array or object scope. |
| | | * @param c The scope to close. |
| | | * @throws JSONException If nesting is wrong. |
| | | */ |
| | | private void pop(char c) throws JSONException { |
| | | if (this.top <= 0) { |
| | | throw new JSONException("Nesting error."); |
| | | } |
| | | char m = this.stack[this.top - 1] == null ? 'a' : 'k'; |
| | | if (m != c) { |
| | | throw new JSONException("Nesting error."); |
| | | } |
| | | this.top -= 1; |
| | | this.mode = this.top == 0 |
| | | ? 'd' |
| | | : this.stack[this.top - 1] == null |
| | | ? 'a' |
| | | : 'k'; |
| | | } |
| | | |
| | | /** |
| | | * Push an array or object scope. |
| | | * @param jo The scope to open. |
| | | * @throws JSONException If nesting is too deep. |
| | | */ |
| | | private void push(JSONObject jo) throws JSONException { |
| | | if (this.top >= maxdepth) { |
| | | throw new JSONException("Nesting too deep."); |
| | | } |
| | | this.stack[this.top] = jo; |
| | | this.mode = jo == null ? 'a' : 'k'; |
| | | this.top += 1; |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Append either the value <code>true</code> or the value |
| | | * <code>false</code>. |
| | | * @param b A boolean. |
| | | * @return this |
| | | * @throws JSONException |
| | | */ |
| | | public JSONWriter value(boolean b) throws JSONException { |
| | | return this.append(b ? "true" : "false"); |
| | | } |
| | | |
| | | /** |
| | | * Append a double value. |
| | | * @param d A double. |
| | | * @return this |
| | | * @throws JSONException If the number is not finite. |
| | | */ |
| | | public JSONWriter value(double d) throws JSONException { |
| | | return this.value(new Double(d)); |
| | | } |
| | | |
| | | /** |
| | | * Append a long value. |
| | | * @param l A long. |
| | | * @return this |
| | | * @throws JSONException |
| | | */ |
| | | public JSONWriter value(long l) throws JSONException { |
| | | return this.append(Long.toString(l)); |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Append an object value. |
| | | * @param object The object to append. It can be null, or a Boolean, Number, |
| | | * String, JSONObject, or JSONArray, or an object that implements JSONString. |
| | | * @return this |
| | | * @throws JSONException If the value is out of sequence. |
| | | */ |
| | | public JSONWriter value(Object object) throws JSONException { |
| | | return this.append(JSONObject.valueToString(object)); |
| | | } |
| | | } |
| | | package com.qcloud.cmq.Json;
|
| | |
|
| | | import java.io.IOException;
|
| | | import java.io.Writer;
|
| | |
|
| | | /*
|
| | | Copyright (c) 2006 JSON.org
|
| | |
|
| | | Permission is hereby granted, free of charge, to any person obtaining a copy
|
| | | of this software and associated documentation files (the "Software"), to deal
|
| | | in the Software without restriction, including without limitation the rights
|
| | | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
| | | copies of the Software, and to permit persons to whom the Software is
|
| | | furnished to do so, subject to the following conditions:
|
| | |
|
| | | The above copyright notice and this permission notice shall be included in all
|
| | | copies or substantial portions of the Software.
|
| | |
|
| | | The Software shall be used for Good, not Evil.
|
| | |
|
| | | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
| | | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
| | | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
| | | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
| | | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
| | | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
| | | SOFTWARE.
|
| | | */
|
| | |
|
| | | /**
|
| | | * JSONWriter provides a quick and convenient way of producing JSON text.
|
| | | * The texts produced strictly conform to JSON syntax rules. No whitespace is
|
| | | * added, so the results are ready for transmission or storage. Each instance of
|
| | | * JSONWriter can produce one JSON text.
|
| | | * <p>
|
| | | * A JSONWriter instance provides a <code>value</code> method for appending
|
| | | * values to the
|
| | | * text, and a <code>key</code>
|
| | | * method for adding keys before values in objects. There are <code>array</code>
|
| | | * and <code>endArray</code> methods that make and bound array values, and
|
| | | * <code>object</code> and <code>endObject</code> methods which make and bound
|
| | | * object values. All of these methods return the JSONWriter instance,
|
| | | * permitting a cascade style. For example, <pre>
|
| | | * new JSONWriter(myWriter)
|
| | | * .object()
|
| | | * .key("JSON")
|
| | | * .value("Hello, World!")
|
| | | * .endObject();</pre> which writes <pre>
|
| | | * {"JSON":"Hello, World!"}</pre>
|
| | | * <p>
|
| | | * The first method called must be <code>array</code> or <code>object</code>.
|
| | | * There are no methods for adding commas or colons. JSONWriter adds them for
|
| | | * you. Objects and arrays can be nested up to 20 levels deep.
|
| | | * <p>
|
| | | * This can sometimes be easier than using a JSONObject to build a string.
|
| | | * @author JSON.org
|
| | | * @version 2011-11-24
|
| | | */
|
| | | public class JSONWriter {
|
| | | private static final int maxdepth = 200;
|
| | |
|
| | | /**
|
| | | * The comma flag determines if a comma should be output before the next
|
| | | * value.
|
| | | */
|
| | | private boolean comma;
|
| | |
|
| | | /**
|
| | | * The current mode. Values:
|
| | | * 'a' (array),
|
| | | * 'd' (done),
|
| | | * 'i' (initial),
|
| | | * 'k' (key),
|
| | | * 'o' (object).
|
| | | */
|
| | | protected char mode;
|
| | |
|
| | | /**
|
| | | * The object/array stack.
|
| | | */
|
| | | private final JSONObject stack[];
|
| | |
|
| | | /**
|
| | | * The stack top index. A value of 0 indicates that the stack is empty.
|
| | | */
|
| | | private int top;
|
| | |
|
| | | /**
|
| | | * The writer that will receive the output.
|
| | | */
|
| | | protected Writer writer;
|
| | |
|
| | | /**
|
| | | * Make a fresh JSONWriter. It can be used to build one JSON text.
|
| | | */
|
| | | public JSONWriter(Writer w) {
|
| | | this.comma = false;
|
| | | this.mode = 'i';
|
| | | this.stack = new JSONObject[maxdepth];
|
| | | this.top = 0;
|
| | | this.writer = w;
|
| | | }
|
| | |
|
| | | /**
|
| | | * Append a value.
|
| | | * @param string A string value.
|
| | | * @return this
|
| | | * @throws JSONException If the value is out of sequence.
|
| | | */
|
| | | private JSONWriter append(String string) throws JSONException {
|
| | | if (string == null) {
|
| | | throw new JSONException("Null pointer");
|
| | | }
|
| | | if (this.mode == 'o' || this.mode == 'a') {
|
| | | try {
|
| | | if (this.comma && this.mode == 'a') {
|
| | | this.writer.write(',');
|
| | | }
|
| | | this.writer.write(string);
|
| | | } catch (IOException e) {
|
| | | throw new JSONException(e);
|
| | | }
|
| | | if (this.mode == 'o') {
|
| | | this.mode = 'k';
|
| | | }
|
| | | this.comma = true;
|
| | | return this;
|
| | | }
|
| | | throw new JSONException("Value out of sequence.");
|
| | | }
|
| | |
|
| | | /**
|
| | | * Begin appending a new array. All values until the balancing
|
| | | * <code>endArray</code> will be appended to this array. The
|
| | | * <code>endArray</code> method must be called to mark the array's end.
|
| | | * @return this
|
| | | * @throws JSONException If the nesting is too deep, or if the object is
|
| | | * started in the wrong place (for example as a key or after the end of the
|
| | | * outermost array or object).
|
| | | */
|
| | | public JSONWriter array() throws JSONException {
|
| | | if (this.mode == 'i' || this.mode == 'o' || this.mode == 'a') {
|
| | | this.push(null);
|
| | | this.append("[");
|
| | | this.comma = false;
|
| | | return this;
|
| | | }
|
| | | throw new JSONException("Misplaced array.");
|
| | | }
|
| | |
|
| | | /**
|
| | | * End something.
|
| | | * @param mode Mode
|
| | | * @param c Closing character
|
| | | * @return this
|
| | | * @throws JSONException If unbalanced.
|
| | | */
|
| | | private JSONWriter end(char mode, char c) throws JSONException {
|
| | | if (this.mode != mode) {
|
| | | throw new JSONException(mode == 'a'
|
| | | ? "Misplaced endArray."
|
| | | : "Misplaced endObject.");
|
| | | }
|
| | | this.pop(mode);
|
| | | try {
|
| | | this.writer.write(c);
|
| | | } catch (IOException e) {
|
| | | throw new JSONException(e);
|
| | | }
|
| | | this.comma = true;
|
| | | return this;
|
| | | }
|
| | |
|
| | | /**
|
| | | * End an array. This method most be called to balance calls to
|
| | | * <code>array</code>.
|
| | | * @return this
|
| | | * @throws JSONException If incorrectly nested.
|
| | | */
|
| | | public JSONWriter endArray() throws JSONException {
|
| | | return this.end('a', ']');
|
| | | }
|
| | |
|
| | | /**
|
| | | * End an object. This method most be called to balance calls to
|
| | | * <code>object</code>.
|
| | | * @return this
|
| | | * @throws JSONException If incorrectly nested.
|
| | | */
|
| | | public JSONWriter endObject() throws JSONException {
|
| | | return this.end('k', '}');
|
| | | }
|
| | |
|
| | | /**
|
| | | * Append a key. The key will be associated with the next value. In an
|
| | | * object, every value must be preceded by a key.
|
| | | * @param string A key string.
|
| | | * @return this
|
| | | * @throws JSONException If the key is out of place. For example, keys
|
| | | * do not belong in arrays or if the key is null.
|
| | | */
|
| | | public JSONWriter key(String string) throws JSONException {
|
| | | if (string == null) {
|
| | | throw new JSONException("Null key.");
|
| | | }
|
| | | if (this.mode == 'k') {
|
| | | try {
|
| | | this.stack[this.top - 1].putOnce(string, Boolean.TRUE);
|
| | | if (this.comma) {
|
| | | this.writer.write(',');
|
| | | }
|
| | | this.writer.write(JSONObject.quote(string));
|
| | | this.writer.write(':');
|
| | | this.comma = false;
|
| | | this.mode = 'o';
|
| | | return this;
|
| | | } catch (IOException e) {
|
| | | throw new JSONException(e);
|
| | | }
|
| | | }
|
| | | throw new JSONException("Misplaced key.");
|
| | | }
|
| | |
|
| | |
|
| | | /**
|
| | | * Begin appending a new object. All keys and values until the balancing
|
| | | * <code>endObject</code> will be appended to this object. The
|
| | | * <code>endObject</code> method must be called to mark the object's end.
|
| | | * @return this
|
| | | * @throws JSONException If the nesting is too deep, or if the object is
|
| | | * started in the wrong place (for example as a key or after the end of the
|
| | | * outermost array or object).
|
| | | */
|
| | | public JSONWriter object() throws JSONException {
|
| | | if (this.mode == 'i') {
|
| | | this.mode = 'o';
|
| | | }
|
| | | if (this.mode == 'o' || this.mode == 'a') {
|
| | | this.append("{");
|
| | | this.push(new JSONObject());
|
| | | this.comma = false;
|
| | | return this;
|
| | | }
|
| | | throw new JSONException("Misplaced object.");
|
| | |
|
| | | }
|
| | |
|
| | |
|
| | | /**
|
| | | * Pop an array or object scope.
|
| | | * @param c The scope to close.
|
| | | * @throws JSONException If nesting is wrong.
|
| | | */
|
| | | private void pop(char c) throws JSONException {
|
| | | if (this.top <= 0) {
|
| | | throw new JSONException("Nesting error.");
|
| | | }
|
| | | char m = this.stack[this.top - 1] == null ? 'a' : 'k';
|
| | | if (m != c) {
|
| | | throw new JSONException("Nesting error.");
|
| | | }
|
| | | this.top -= 1;
|
| | | this.mode = this.top == 0
|
| | | ? 'd'
|
| | | : this.stack[this.top - 1] == null
|
| | | ? 'a'
|
| | | : 'k';
|
| | | }
|
| | |
|
| | | /**
|
| | | * Push an array or object scope.
|
| | | * @param jo The scope to open.
|
| | | * @throws JSONException If nesting is too deep.
|
| | | */
|
| | | private void push(JSONObject jo) throws JSONException {
|
| | | if (this.top >= maxdepth) {
|
| | | throw new JSONException("Nesting too deep.");
|
| | | }
|
| | | this.stack[this.top] = jo;
|
| | | this.mode = jo == null ? 'a' : 'k';
|
| | | this.top += 1;
|
| | | }
|
| | |
|
| | |
|
| | | /**
|
| | | * Append either the value <code>true</code> or the value
|
| | | * <code>false</code>.
|
| | | * @param b A boolean.
|
| | | * @return this
|
| | | * @throws JSONException
|
| | | */
|
| | | public JSONWriter value(boolean b) throws JSONException {
|
| | | return this.append(b ? "true" : "false");
|
| | | }
|
| | |
|
| | | /**
|
| | | * Append a double value.
|
| | | * @param d A double.
|
| | | * @return this
|
| | | * @throws JSONException If the number is not finite.
|
| | | */
|
| | | public JSONWriter value(double d) throws JSONException {
|
| | | return this.value(new Double(d));
|
| | | }
|
| | |
|
| | | /**
|
| | | * Append a long value.
|
| | | * @param l A long.
|
| | | * @return this
|
| | | * @throws JSONException
|
| | | */
|
| | | public JSONWriter value(long l) throws JSONException {
|
| | | return this.append(Long.toString(l));
|
| | | }
|
| | |
|
| | |
|
| | | /**
|
| | | * Append an object value.
|
| | | * @param object The object to append. It can be null, or a Boolean, Number,
|
| | | * String, JSONObject, or JSONArray, or an object that implements JSONString.
|
| | | * @return this
|
| | | * @throws JSONException If the value is out of sequence.
|
| | | */
|
| | | public JSONWriter value(Object object) throws JSONException {
|
| | | return this.append(JSONObject.valueToString(object));
|
| | | }
|
| | | }
|