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Creates function to know if a jsonPath is a function or not #867

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Creates function to know if a jsonPath is a function or not #867

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11 changes: 11 additions & 0 deletions json-path/src/main/java/com/jayway/jsonpath/JsonPath.java
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Original file line number Diff line number Diff line change
Expand Up @@ -496,6 +496,17 @@ public <T> T read(InputStream jsonInputStream, String charset, Configuration con
}
}

/**
* As JsonPath accepts a vary number of functions like min(), max(),
* avg(), stddev(), length(), sum(), keys(), concat(X), append(X),
* this function will return true if the path is a function
*
* @return true if the path is a function
*/
public Boolean isFunctionPath() {
return path.isFunctionPath();
}

// --------------------------------------------------------
//
// Static factory methods
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6 changes: 6 additions & 0 deletions json-path/src/test/java/com/jayway/jsonpath/PathCompilerTest.java
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Expand Up @@ -304,6 +304,12 @@ public void a_function_can_be_compiled() {
assertThat(compile("$.aaa.foo(5,10,15)").toString()).isEqualTo("$['aaa'].foo(...)");
}

@Test
public void path_is_a_function() {
assertThat(compile("concat($.aaa, $.bbb)").isFunctionPath()).isTrue();
assertThat(compile("$.aaa").isFunctionPath()).isFalse();
}

@Test(expected = InvalidPathException.class)
public void array_indexes_must_be_separated_by_commas() {
compile("$[0, 1, 2 4]");
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