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-rw-r--r--lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangMap.java267
1 files changed, 133 insertions, 134 deletions
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangMap.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangMap.java
index 7f1a64b87d..7f2621923a 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangMap.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangMap.java
@@ -18,15 +18,14 @@
*/
package com.ericsson.otp.erlang;
-
/**
* Provides a Java representation of Erlang maps. Maps are created from one or
* more arbitrary Erlang terms.
- *
+ *
* <p>
* The arity of the map is the number of elements it contains. The keys and
* values can be retrieved as arrays and the value for a key can be queried.
- *
+ *
*/
public class OtpErlangMap extends OtpErlangObject {
// don't change this!
@@ -39,23 +38,23 @@ public class OtpErlangMap extends OtpErlangObject {
/**
* Create a map from an array of keys and an array of values.
- *
+ *
* @param keys
* the array of terms to create the map keys from.
* @param values
* the array of terms to create the map values from.
- *
+ *
* @exception java.lang.IllegalArgumentException
* if any array is empty (null) or contains null elements.
*/
public OtpErlangMap(final OtpErlangObject[] keys,
- final OtpErlangObject[] values) {
- this(keys, 0, keys.length, values, 0, values.length);
+ final OtpErlangObject[] values) {
+ this(keys, 0, keys.length, values, 0, values.length);
}
/**
* Create a map from an array of terms.
- *
+ *
* @param keys
* the array of terms to create the map from.
* @param kstart
@@ -68,228 +67,228 @@ public class OtpErlangMap extends OtpErlangObject {
* the offset of the first value to insert.
* @param vcount
* the number of values to insert.
- *
+ *
* @exception java.lang.IllegalArgumentException
* if any array is empty (null) or contains null elements.
* @exception java.lang.IllegalArgumentException
* if kcount and vcount differ.
*/
public OtpErlangMap(final OtpErlangObject[] keys, final int kstart,
- final int kcount, final OtpErlangObject[] values, final int vstart,
- final int vcount) {
- if (keys == null || values == null) {
- throw new java.lang.IllegalArgumentException(
- "Map content can't be null");
- } else if (kcount != vcount) {
- throw new java.lang.IllegalArgumentException(
- "Map keys and values must have same arity");
- } else if (vcount < 1) {
- this.keys = NO_ELEMENTS;
- this.values = NO_ELEMENTS;
- } else {
- this.keys = new OtpErlangObject[vcount];
- for (int i = 0; i < vcount; i++) {
- if (keys[kstart + i] != null) {
- this.keys[i] = keys[kstart + i];
- } else {
- throw new java.lang.IllegalArgumentException(
- "Map key cannot be null (element" + (kstart + i)
- + ")");
- }
- }
- this.values = new OtpErlangObject[vcount];
- for (int i = 0; i < vcount; i++) {
- if (values[vstart + i] != null) {
- this.values[i] = values[vstart + i];
- } else {
- throw new java.lang.IllegalArgumentException(
- "Map value cannot be null (element" + (vstart + i)
- + ")");
- }
- }
- }
+ final int kcount, final OtpErlangObject[] values, final int vstart,
+ final int vcount) {
+ if (keys == null || values == null) {
+ throw new java.lang.IllegalArgumentException(
+ "Map content can't be null");
+ } else if (kcount != vcount) {
+ throw new java.lang.IllegalArgumentException(
+ "Map keys and values must have same arity");
+ } else if (vcount < 1) {
+ this.keys = NO_ELEMENTS;
+ this.values = NO_ELEMENTS;
+ } else {
+ this.keys = new OtpErlangObject[vcount];
+ for (int i = 0; i < vcount; i++) {
+ if (keys[kstart + i] != null) {
+ this.keys[i] = keys[kstart + i];
+ } else {
+ throw new java.lang.IllegalArgumentException(
+ "Map key cannot be null (element" + (kstart + i)
+ + ")");
+ }
+ }
+ this.values = new OtpErlangObject[vcount];
+ for (int i = 0; i < vcount; i++) {
+ if (values[vstart + i] != null) {
+ this.values[i] = values[vstart + i];
+ } else {
+ throw new java.lang.IllegalArgumentException(
+ "Map value cannot be null (element" + (vstart + i)
+ + ")");
+ }
+ }
+ }
}
/**
* Create a map from a stream containing a map encoded in Erlang external
* format.
- *
+ *
* @param buf
* the stream containing the encoded map.
- *
+ *
* @exception OtpErlangDecodeException
* if the buffer does not contain a valid external
* representation of an Erlang map.
*/
public OtpErlangMap(final OtpInputStream buf)
- throws OtpErlangDecodeException {
- final int arity = buf.read_map_head();
+ throws OtpErlangDecodeException {
+ final int arity = buf.read_map_head();
- if (arity > 0) {
- keys = new OtpErlangObject[arity];
- values = new OtpErlangObject[arity];
+ if (arity > 0) {
+ keys = new OtpErlangObject[arity];
+ values = new OtpErlangObject[arity];
- for (int i = 0; i < arity; i++) {
- keys[i] = buf.read_any();
- values[i] = buf.read_any();
- }
- } else {
- keys = NO_ELEMENTS;
- values = NO_ELEMENTS;
- }
+ for (int i = 0; i < arity; i++) {
+ keys[i] = buf.read_any();
+ values[i] = buf.read_any();
+ }
+ } else {
+ keys = NO_ELEMENTS;
+ values = NO_ELEMENTS;
+ }
}
/**
* Get the arity of the map.
- *
+ *
* @return the number of elements contained in the map.
*/
public int arity() {
- return keys.length;
+ return keys.length;
}
/**
* Get the specified value from the map.
- *
+ *
* @param key
* the key of the requested value.
- *
+ *
* @return the requested value, of null if key is not a valid key.
*/
public OtpErlangObject get(final OtpErlangObject key) {
- if (key == null) {
- return null;
- }
- for (int i = 0; i < keys.length; i++) {
- if (key.equals(keys[i])) {
- return values[i];
- }
- }
- return null;
+ if (key == null) {
+ return null;
+ }
+ for (int i = 0; i < keys.length; i++) {
+ if (key.equals(keys[i])) {
+ return values[i];
+ }
+ }
+ return null;
}
/**
* Get all the keys from the map as an array.
- *
+ *
* @return an array containing all of the map's keys.
*/
public OtpErlangObject[] keys() {
- final OtpErlangObject[] res = new OtpErlangObject[arity()];
- System.arraycopy(keys, 0, res, 0, res.length);
- return res;
+ final OtpErlangObject[] res = new OtpErlangObject[arity()];
+ System.arraycopy(keys, 0, res, 0, res.length);
+ return res;
}
/**
* Get all the values from the map as an array.
- *
+ *
* @return an array containing all of the map's values.
*/
public OtpErlangObject[] values() {
- final OtpErlangObject[] res = new OtpErlangObject[arity()];
- System.arraycopy(values, 0, res, 0, res.length);
- return res;
+ final OtpErlangObject[] res = new OtpErlangObject[arity()];
+ System.arraycopy(values, 0, res, 0, res.length);
+ return res;
}
/**
* Get the string representation of the map.
- *
+ *
* @return the string representation of the map.
*/
@Override
public String toString() {
- int i;
- final StringBuffer s = new StringBuffer();
- final int arity = values.length;
+ int i;
+ final StringBuffer s = new StringBuffer();
+ final int arity = values.length;
- s.append("#{");
+ s.append("#{");
- for (i = 0; i < arity; i++) {
- if (i > 0) {
- s.append(",");
- }
- s.append(keys[i].toString());
- s.append(" => ");
- s.append(values[i].toString());
- }
+ for (i = 0; i < arity; i++) {
+ if (i > 0) {
+ s.append(",");
+ }
+ s.append(keys[i].toString());
+ s.append(" => ");
+ s.append(values[i].toString());
+ }
- s.append("}");
+ s.append("}");
- return s.toString();
+ return s.toString();
}
/**
* Convert this map to the equivalent Erlang external representation.
- *
+ *
* @param buf
* an output stream to which the encoded map should be written.
*/
@Override
public void encode(final OtpOutputStream buf) {
- final int arity = values.length;
+ final int arity = values.length;
- buf.write_map_head(arity);
+ buf.write_map_head(arity);
- for (int i = 0; i < arity; i++) {
- buf.write_any(keys[i]);
- buf.write_any(values[i]);
- }
+ for (int i = 0; i < arity; i++) {
+ buf.write_any(keys[i]);
+ buf.write_any(values[i]);
+ }
}
/**
* Determine if two maps are equal. Maps are equal if they have the same
* arity and all of the elements are equal.
- *
+ *
* @param o
* the map to compare to.
- *
+ *
* @return true if the maps have the same arity and all the elements are
* equal.
*/
@Override
public boolean equals(final Object o) {
- if (!(o instanceof OtpErlangMap)) {
- return false;
- }
+ if (!(o instanceof OtpErlangMap)) {
+ return false;
+ }
- final OtpErlangMap t = (OtpErlangMap) o;
- final int a = arity();
+ final OtpErlangMap t = (OtpErlangMap) o;
+ final int a = arity();
- if (a != t.arity()) {
- return false;
- }
+ if (a != t.arity()) {
+ return false;
+ }
- for (int i = 0; i < a; i++) {
- if (!keys[i].equals(t.keys[i])) {
- return false; // early exit
- }
- }
- for (int i = 0; i < a; i++) {
- if (!values[i].equals(t.values[i])) {
- return false; // early exit
- }
- }
+ for (int i = 0; i < a; i++) {
+ if (!keys[i].equals(t.keys[i])) {
+ return false; // early exit
+ }
+ }
+ for (int i = 0; i < a; i++) {
+ if (!values[i].equals(t.values[i])) {
+ return false; // early exit
+ }
+ }
- return true;
+ return true;
}
@Override
protected int doHashCode() {
- final OtpErlangObject.Hash hash = new OtpErlangObject.Hash(9);
- final int a = arity();
- hash.combine(a);
- for (int i = 0; i < a; i++) {
- hash.combine(keys[i].hashCode());
- }
- for (int i = 0; i < a; i++) {
- hash.combine(values[i].hashCode());
- }
- return hash.valueOf();
+ final OtpErlangObject.Hash hash = new OtpErlangObject.Hash(9);
+ final int a = arity();
+ hash.combine(a);
+ for (int i = 0; i < a; i++) {
+ hash.combine(keys[i].hashCode());
+ }
+ for (int i = 0; i < a; i++) {
+ hash.combine(values[i].hashCode());
+ }
+ return hash.valueOf();
}
@Override
public Object clone() {
- final OtpErlangMap newMap = (OtpErlangMap) super.clone();
- newMap.values = values.clone();
- return newMap;
+ final OtpErlangMap newMap = (OtpErlangMap) super.clone();
+ newMap.values = values.clone();
+ return newMap;
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-01 14:28:28 +0000