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kalle 13 years ago
parent
commit
e53bd8a8ba
  1. 76
      json-path/src/main/java/com/jayway/jsonpath/JsonPath.java
  2. 8
      json-path/src/main/java/com/jayway/jsonpath/reader/PathTokenizer.java
  3. 6
      json-path/src/main/java/com/jayway/jsonpath/reader/filter/ArrayEvalFilter.java
  4. 8
      json-path/src/main/java/com/jayway/jsonpath/reader/filter/ArrayIndexFilter.java
  5. 16
      json-path/src/main/java/com/jayway/jsonpath/reader/filter/FieldFilter.java
  6. 8
      json-path/src/main/java/com/jayway/jsonpath/reader/filter/FilterFactory.java
  7. 38
      json-path/src/main/java/com/jayway/jsonpath/reader/filter/WildcardFilter.java
  8. 31
      json-path/src/test/java/com/jayway/jsonpath/JsonPathTest.java

76
json-path/src/main/java/com/jayway/jsonpath/JsonPath.java

@ -1,15 +1,16 @@
package com.jayway.jsonpath; package com.jayway.jsonpath;
import com.jayway.jsonpath.filter.FilterOutput; import com.jayway.jsonpath.reader.PathToken;
import com.jayway.jsonpath.filter.JsonPathFilterChain; import com.jayway.jsonpath.reader.PathTokenizer;
import net.minidev.json.JSONArray;
import net.minidev.json.JSONObject;
import net.minidev.json.parser.JSONParser; import net.minidev.json.parser.JSONParser;
import net.minidev.json.parser.ParseException; import net.minidev.json.parser.ParseException;
import java.io.IOException; import java.io.IOException;
import java.util.List;
import java.util.Map;
import java.util.logging.Logger; import java.util.logging.Logger;
import java.util.regex.Pattern;
/** /**
* User: kalle stenflo * User: kalle stenflo
@ -84,16 +85,18 @@ public class JsonPath {
private static JSONParser JSON_PARSER = new JSONParser(JsonPath.mode); private static JSONParser JSON_PARSER = new JSONParser(JsonPath.mode);
private JsonPathFilterChain filters; private static Pattern DEFINITE_PATH_PATTERN = Pattern.compile(".*(\\.\\.|\\*|\\[[\\\\/]|\\?|,|:\\s?\\]|\\[\\s?:|>|\\(|<|=|\\+).*");
public static void setMode(int mode){ private PathTokenizer tokenizer;
if(mode != JsonPath.mode){
public static void setMode(int mode) {
if (mode != JsonPath.mode) {
JsonPath.mode = mode; JsonPath.mode = mode;
JSON_PARSER = new JSONParser(JsonPath.mode); JSON_PARSER = new JSONParser(JsonPath.mode);
} }
} }
public static int getMode(){ public static int getMode() {
return mode; return mode;
} }
@ -111,24 +114,71 @@ public class JsonPath {
throw new InvalidPathException("Invalid path"); throw new InvalidPathException("Invalid path");
} }
this.filters = new JsonPathFilterChain(PathUtil.splitPath(jsonPath)); this.tokenizer = new PathTokenizer(jsonPath);
//this.filters = new JsonPathFilterChain(PathUtil.splitPath(jsonPath));
}
public String getPath() {
return this.tokenizer.getPath();
} }
/** /**
* Applies this json path to the provided object * Checks if a path points to a single item or if it potentially returns multiple items
* <p/>
* a path is considered <strong>not</strong> definite if it contains a scan fragment ".."
* or an array position fragment that is not based on a single index
* <p/>
* <p/>
* definite path examples are:
* <p/>
* $store.book
* $store.book[1].title
* <p/>
* not definite path examples are:
* <p/>
* $..book
* $.store.book[1,2]
* $.store.book[?(@.category = 'fiction')]
* *
* @param json a json Object * @return true if path is definite (points to single item)
*/
public boolean isPathDefinite() {
//return !getPath().replaceAll("\"[^\"\\\\\\n\r]*\"", "").matches(".*(\\.\\.|\\*|\\[[\\\\/]|\\?|,|:\\s?\\]|\\[\\s?:|>|\\(|<|=|\\+).*");
String preparedPath = getPath().replaceAll("\"[^\"\\\\\\n\r]*\"", "");
return !DEFINITE_PATH_PATTERN.matcher(preparedPath).matches();
}
/**
* Applies this container path to the provided object
*
* @param container a container Object
* @param <T> * @param <T>
* @return list of objects matched by the given path * @return list of objects matched by the given path
*/ */
public <T> T read(Object json) { public <T> T read(Object container) {
FilterOutput filterOutput = filters.filter(json);
if(!(container instanceof Map) && !(container instanceof List) ){
throw new IllegalArgumentException("Invalid container object");
}
Object result = container;
for (PathToken pathToken : tokenizer) {
result = pathToken.filter(result);
}
return (T)result;
/*
FilterOutput filterOutput = filters.filter(container);
if (filterOutput == null || filterOutput.getResult() == null) { if (filterOutput == null || filterOutput.getResult() == null) {
return null; return null;
} }
return (T) filterOutput.getResult(); return (T) filterOutput.getResult();
*/
} }
/** /**

8
json-path/src/main/java/com/jayway/jsonpath/reader/PathTokenizer.java

@ -14,6 +14,7 @@ import java.util.List;
*/ */
public class PathTokenizer implements Iterable<PathToken> { public class PathTokenizer implements Iterable<PathToken> {
private String path;
private char[] pathChars; private char[] pathChars;
private int index = 0; private int index = 0;
private List<PathToken> pathTokens = new LinkedList<PathToken>(); private List<PathToken> pathTokens = new LinkedList<PathToken>();
@ -23,13 +24,18 @@ public class PathTokenizer implements Iterable<PathToken> {
if (!jsonPath.startsWith("$") && !jsonPath.startsWith("$[")) { if (!jsonPath.startsWith("$") && !jsonPath.startsWith("$[")) {
jsonPath = "$." + jsonPath; jsonPath = "$." + jsonPath;
} }
pathChars = jsonPath.toCharArray(); this.path = jsonPath;
this.pathChars = path.toCharArray();
for (String pathFragment : splitPath()) { for (String pathFragment : splitPath()) {
pathTokens.add(new PathToken(pathFragment)); pathTokens.add(new PathToken(pathFragment));
} }
} }
public String getPath() {
return path;
}
public Iterator<PathToken> iterator() { public Iterator<PathToken> iterator() {
return pathTokens.iterator(); return pathTokens.iterator();
} }

6
json-path/src/main/java/com/jayway/jsonpath/reader/filter/ArrayEvalFilter.java

@ -34,6 +34,8 @@ public class ArrayEvalFilter extends Filter {
ConditionStatement conditionStatement = createConditionStatement(trimmedCondition); ConditionStatement conditionStatement = createConditionStatement(trimmedCondition);
for (Object item : src) { for (Object item : src) {
if (isMatch(item, conditionStatement)) { if (isMatch(item, conditionStatement)) {
result.add(item); result.add(item);
@ -83,6 +85,10 @@ public class ArrayEvalFilter extends Filter {
this.field = field; this.field = field;
this.operator = operator; this.operator = operator;
this.expected = expected; this.expected = expected;
if(this.expected.startsWith("'")){
this.expected = trim(this.expected, 1, 1);
}
} }
public String getField() { public String getField() {

8
json-path/src/main/java/com/jayway/jsonpath/reader/filter/ArrayIndexFilter.java

@ -22,6 +22,13 @@ public class ArrayIndexFilter extends Filter {
String trimmedCondition = trim(condition, 1, 1); String trimmedCondition = trim(condition, 1, 1);
if(trimmedCondition.contains("@.length")){
trimmedCondition = trim(trimmedCondition, 1, 1);
trimmedCondition = trimmedCondition.replace("@.length", "");
trimmedCondition = trimmedCondition + ":";
}
if (trimmedCondition.startsWith(":")) { if (trimmedCondition.startsWith(":")) {
trimmedCondition = trim(trimmedCondition, 1, 0); trimmedCondition = trim(trimmedCondition, 1, 0);
int get = Integer.parseInt(trimmedCondition); int get = Integer.parseInt(trimmedCondition);
@ -34,6 +41,7 @@ public class ArrayIndexFilter extends Filter {
trimmedCondition = trim(trimmedCondition, 1, 1); trimmedCondition = trim(trimmedCondition, 1, 1);
int get = Integer.parseInt(trimmedCondition); int get = Integer.parseInt(trimmedCondition);
return src.get(src.size() - get); return src.get(src.size() - get);
} else { } else {
String[] indexArr = trimmedCondition.split(","); String[] indexArr = trimmedCondition.split(",");

16
json-path/src/main/java/com/jayway/jsonpath/reader/filter/FieldFilter.java

@ -17,10 +17,20 @@ public class FieldFilter extends Filter {
} }
public Object filter(Object obj) { public Object filter(Object obj) {
if(isList(obj)){ if (isList(obj)) {
List<Object> result = new LinkedList<Object>(); List<Object> result = new LinkedList<Object>();
for (Object item : toList(obj)) { for (Object current : toList(obj)) {
result.add(filter(item)); if (isMap(current)) {
Map<String, Object> map = toMap(current);
if (map.containsKey(condition)) {
Object o = map.get(condition);
if (isList(o)) {
result.addAll(toList(o));
} else {
result.add(map.get(condition));
}
}
}
} }
return result; return result;
} else { } else {

8
json-path/src/main/java/com/jayway/jsonpath/reader/filter/FilterFactory.java

@ -12,10 +12,14 @@ public class FilterFactory {
public static Filter createFilter(String pathFragment) { public static Filter createFilter(String pathFragment) {
if ("$".equals(pathFragment) || "*".equals(pathFragment) || "[*]".equals(pathFragment)) { if ("$".equals(pathFragment) || "[*]".equals(pathFragment)) {
return new PassThrewFilter(pathFragment); return new PassThrewFilter(pathFragment);
} else if ("*".equals(pathFragment)) {
return new WildcardFilter(pathFragment);
} else if (pathFragment.contains("..")) { } else if (pathFragment.contains("..")) {
return new ScanFilter(pathFragment); return new ScanFilter(pathFragment);
@ -27,7 +31,7 @@ public class FilterFactory {
} else if (pathFragment.contains("[")) { } else if (pathFragment.contains("[")) {
if (pathFragment.startsWith("[?")) { if (pathFragment.startsWith("[?")) {
if(!pathFragment.contains("=")){ if(!pathFragment.contains("=") && !pathFragment.contains("<") && !pathFragment.contains(">")){
//[?(@.isbn)] //[?(@.isbn)]
return new HasFieldFilter(pathFragment); return new HasFieldFilter(pathFragment);
} else { } else {

38
json-path/src/main/java/com/jayway/jsonpath/reader/filter/WildcardFilter.java

@ -0,0 +1,38 @@
package com.jayway.jsonpath.reader.filter;
import com.jayway.jsonpath.JsonUtil;
import net.minidev.json.JSONArray;
import java.util.LinkedList;
import java.util.List;
/**
* Created by IntelliJ IDEA.
* User: kallestenflo
* Date: 11/7/11
* Time: 1:59 PM
*/
public class WildcardFilter extends Filter {
public WildcardFilter(String condition) {
super(condition);
}
@Override
public Object filter(Object obj) {
List<Object> result = new LinkedList<Object>();
if (isList(obj)) {
for (Object current : toList(obj)) {
for (Object value : toMap(current).values()) {
result.add(value);
}
}
} else {
for (Object value : toMap(obj).values()) {
result.add(value);
}
}
return result;
}
}

31
json-path/src/test/java/com/jayway/jsonpath/JsonPathTest.java

@ -196,10 +196,20 @@ public class JsonPathTest {
@Test @Test
public void all_books_cheaper_than_10() throws Exception { public void all_books_cheaper_than_10() throws Exception {
assertThat(JsonPath.<List<String>>read(DOCUMENT, "$.store.book[?(@.price < 10)].title"), hasItems("Sayings of the Century", "Moby Dick")); assertThat(JsonPath.<List<String>>read(DOCUMENT, "$..book[?(@.price<10)].title"), hasItems("Sayings of the Century", "Moby Dick"));
} }
@Test
public void all_books() throws Exception {
//List<String> books = JsonPath.<List<String>>read(DOCUMENT, "$..book");
Object books = JsonPath.<List<String>>read(DOCUMENT, "$..book");
System.out.println("test");
}
@Test @Test
public void dot_in_predicate_works() throws Exception { public void dot_in_predicate_works() throws Exception {
@ -217,7 +227,8 @@ public class JsonPathTest {
@Test @Test
public void all_books_with_category_reference() throws Exception { public void all_books_with_category_reference() throws Exception {
assertThat(JsonPath.<List<String>>read(DOCUMENT, "$..book[?(@.category = 'reference')].title"), hasItems("Sayings of the Century")); assertThat(JsonPath.<List<String>>read(DOCUMENT, "$..book[?(@.category='reference')].title"), hasItems("Sayings of the Century"));
assertThat(JsonPath.<List<String>>read(DOCUMENT, "$.store.book[?(@.category='reference')].title"), hasItems("Sayings of the Century"));
} }
@ -226,26 +237,12 @@ public class JsonPathTest {
List<String> all = JsonPath.read(DOCUMENT, "$..*"); List<String> all = JsonPath.read(DOCUMENT, "$..*");
} }
@Test @Test(expected = IndexOutOfBoundsException.class)
public void access_index_out_of_bounds_does_not_throw_exception() throws Exception { public void access_index_out_of_bounds_does_not_throw_exception() throws Exception {
Object res = JsonPath.read(DOCUMENT, "$.store.book[100].author"); Object res = JsonPath.read(DOCUMENT, "$.store.book[100].author");
assertNull(res);
res = JsonPath.read(DOCUMENT, "$.store.book[1, 200].author");
assertThat((List<String>) res, hasItems("Evelyn Waugh"));
//assertNull(();
}
/*
@Test(expected = InvalidPathException.class)
public void invalid_space_path_throws_exception() throws Exception {
JsonPath.read(DOCUMENT, "space is not good");
} }
*/
@Test(expected = InvalidPathException.class) @Test(expected = InvalidPathException.class)
public void invalid_new_path_throws_exception() throws Exception { public void invalid_new_path_throws_exception() throws Exception {

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