diff options
Diffstat (limited to 'lib/jinterface/java_src')
14 files changed, 350 insertions, 20 deletions
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/AbstractConnection.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/AbstractConnection.java index 9ba6a4a0ab..85d303689f 100644 --- a/lib/jinterface/java_src/com/ericsson/otp/erlang/AbstractConnection.java +++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/AbstractConnection.java @@ -266,7 +266,7 @@ public abstract class AbstractConnection extends Thread { * * @param dest * the Erlang PID of the remote process. - * @param msg + * @param payload * the encoded message to send. * * @exception java.io.IOException @@ -959,7 +959,9 @@ public abstract class AbstractConnection extends Thread { } catch (final Exception e) { final String nn = peer.node(); close(); - throw new IOException("Error accepting connection from " + nn); + IOException ioe = new IOException("Error accepting connection from " + nn); + ioe.initCause(e); + throw ioe; } if (traceLevel >= handshakeThreshold) { System.out.println("<- MD5 ACCEPTED " + peer.host()); @@ -990,7 +992,9 @@ public abstract class AbstractConnection extends Thread { throw ae; } catch (final Exception e) { close(); - throw new IOException("Cannot connect to peer node"); + IOException ioe = new IOException("Cannot connect to peer node"); + ioe.initCause(e); + throw ioe; } } diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/AbstractNode.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/AbstractNode.java index 968f284bff..3ef44b8851 100644 --- a/lib/jinterface/java_src/com/ericsson/otp/erlang/AbstractNode.java +++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/AbstractNode.java @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2000-2013. All Rights Reserved. + * Copyright Ericsson AB 2000-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -92,6 +92,7 @@ public class AbstractNode { static final int dFlagNewFloats = 0x800; static final int dFlagUnicodeIo = 0x1000; static final int dFlagUtf8Atoms = 0x10000; + static final int dFlagMapTag = 0x20000; int ntype = NTYPE_R6; int proto = 0; // tcp/ip @@ -100,7 +101,7 @@ public class AbstractNode { int creation = 0; int flags = dFlagExtendedReferences | dFlagExtendedPidsPorts | dFlagBitBinaries | dFlagNewFloats | dFlagFunTags - | dflagNewFunTags | dFlagUtf8Atoms; + | dflagNewFunTags | dFlagUtf8Atoms | dFlagMapTag; /* initialize hostname and default cookie */ static { diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpConnection.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpConnection.java index 8e8bd473c8..e7a9d1092c 100644 --- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpConnection.java +++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpConnection.java @@ -404,7 +404,7 @@ public class OtpConnection extends AbstractConnection { * * @param dest * the Erlang PID of the remote process. - * @param msg + * @param payload * the encoded message to send. * * @exception java.io.IOException diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangFun.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangFun.java index fc104e9564..c52909acc5 100644 --- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangFun.java +++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangFun.java @@ -94,7 +94,7 @@ public class OtpErlangFun extends OtpErlangObject implements Serializable { return false; } } else { - if (!md5.equals(f.md5)) { + if (!Arrays.equals(md5, f.md5)) { return false; } } @@ -104,7 +104,7 @@ public class OtpErlangFun extends OtpErlangObject implements Serializable { if (freeVars == null) { return f.freeVars == null; } - return freeVars.equals(f.freeVars); + return Arrays.equals(freeVars, f.freeVars); } @Override diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangLong.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangLong.java index 7e3e2a7296..84b1355c54 100644 --- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangLong.java +++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangLong.java @@ -51,8 +51,8 @@ public class OtpErlangLong extends OtpErlangObject implements Serializable, /** * Create an Erlang integer from the given value. * - * @param val - * the long value to use. + * @param v + * the big integer value to use. */ public OtpErlangLong(final BigInteger v) { if (v == null) { diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangMap.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangMap.java new file mode 100644 index 0000000000..0254edd5da --- /dev/null +++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangMap.java @@ -0,0 +1,297 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2000-2013. All Rights Reserved. + * + * The contents of this file are subject to the Erlang Public License, + * Version 1.1, (the "License"); you may not use this file except in + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + */ +package com.ericsson.otp.erlang; + +import java.io.Serializable; + +/** + * 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 implements Serializable, + Cloneable { + // don't change this! + private static final long serialVersionUID = -6410770117696198497L; + + private static final OtpErlangObject[] NO_ELEMENTS = new OtpErlangObject[0]; + + private OtpErlangObject[] keys = NO_ELEMENTS; + private OtpErlangObject[] values = NO_ELEMENTS; + + /** + * 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); + } + + /** + * Create a map from an array of terms. + * + * @param keys + * the array of terms to create the map from. + * @param kstart + * the offset of the first key to insert. + * @param kcount + * the number of keys to insert. + * @param values + * the array of values to create the map from. + * @param vstart + * 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) + + ")"); + } + } + } + } + + /** + * 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(); + + 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; + } + } + + /** + * Get the arity of the map. + * + * @return the number of elements contained in the map. + */ + public int arity() { + 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; + } + + /** + * 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; + } + + /** + * 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; + } + + /** + * 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; + + 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()); + } + + s.append("}"); + + 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; + + buf.write_map_head(arity); + + 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; + } + + final OtpErlangMap t = (OtpErlangMap) o; + final int a = arity(); + + 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 + } + } + + 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(); + } + + @Override + public Object clone() { + final OtpErlangMap newMap = (OtpErlangMap) super.clone(); + newMap.values = values.clone(); + return newMap; + } +} diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPid.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPid.java index fe81ce302d..f75e4353d0 100644 --- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPid.java +++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPid.java @@ -162,7 +162,7 @@ public class OtpErlangPid extends OtpErlangObject implements Serializable, * Determine if two PIDs are equal. PIDs are equal if their components are * equal. * - * @param port + * @param o * the other PID to compare to. * * @return true if the PIDs are equal, false otherwise. diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangString.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangString.java index 6766b52ce5..a5e202c473 100644 --- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangString.java +++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangString.java @@ -41,8 +41,6 @@ public class OtpErlangString extends OtpErlangObject implements Serializable, /** * Create an Erlang string from a list of integers. - * - * @return an Erlang string with Unicode code units. * * @throws OtpErlangException * for non-proper and non-integer lists. diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpExternal.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpExternal.java index 45a82d6c94..fa0fe18e95 100644 --- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpExternal.java +++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpExternal.java @@ -85,6 +85,9 @@ public class OtpExternal { /** The tag used for new style references */ public static final int newRefTag = 114; + /** The tag used for maps */ + public static final int mapTag = 116; + /** The tag used for old Funs */ public static final int funTag = 117; diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpInputStream.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpInputStream.java index 9dc1728346..f813594541 100644 --- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpInputStream.java +++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpInputStream.java @@ -21,6 +21,7 @@ package com.ericsson.otp.erlang; import java.io.ByteArrayInputStream; import java.io.IOException; import java.math.BigDecimal; +import java.util.Arrays; /** * Provides a stream for decoding Erlang terms from external format. @@ -819,7 +820,7 @@ public class OtpInputStream extends ByteArrayInputStream { if (unsigned) { if (c < 0) { throw new OtpErlangDecodeException("Value not unsigned: " - + b); + + Arrays.toString(b)); } while (b[i] == 0) { i++; // Skip leading zero sign bytes @@ -844,7 +845,7 @@ public class OtpInputStream extends ByteArrayInputStream { if (b.length - i > 8) { // More than 64 bits of value throw new OtpErlangDecodeException( - "Value does not fit in long: " + b); + "Value does not fit in long: " + Arrays.toString(b)); } // Convert the necessary bytes for (v = c < 0 ? -1 : 0; i < b.length; i++) { @@ -1202,6 +1203,9 @@ public class OtpInputStream extends ByteArrayInputStream { case OtpExternal.newRefTag: return new OtpErlangRef(this); + case OtpExternal.mapTag: + return new OtpErlangMap(this); + case OtpExternal.portTag: return new OtpErlangPort(this); @@ -1244,4 +1248,21 @@ public class OtpInputStream extends ByteArrayInputStream { throw new OtpErlangDecodeException("Uknown data type: " + tag); } } + + public int read_map_head() throws OtpErlangDecodeException { + int arity = 0; + final int tag = read1skip_version(); + + // decode the map header and get arity + switch (tag) { + case OtpExternal.mapTag: + arity = read4BE(); + break; + + default: + throw new OtpErlangDecodeException("Not valid map tag: " + tag); + } + + return arity; + } } diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpMbox.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpMbox.java index 0fd93b09f4..4a4a1e7f8f 100644 --- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpMbox.java +++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpMbox.java @@ -69,6 +69,7 @@ package com.ericsson.otp.erlang; * notify other parties in a timely manner. * </p> * + * <p> * When retrieving messages from a mailbox that has received an exit signal, an * {@link OtpErlangExit OtpErlangExit} exception will be raised. Note that the * exception is queued in the mailbox along with other messages, and will not be @@ -420,7 +421,6 @@ public class OtpMbox { /** * Equivalent to <code>exit(new OtpErlangAtom(reason))</code>. - * </p> * * @see #exit(OtpErlangObject) */ diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpMsg.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpMsg.java index 6f507bf4bb..31a5d0fb8f 100644 --- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpMsg.java +++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpMsg.java @@ -30,14 +30,14 @@ package com.ericsson.otp.erlang; * </p> * * <p> - * The header information that is available is as follows: <lu> + * The header information that is available is as follows: <ul> * <li> a tag indicating the type of message * <li> the intended recipient of the message, either as a * {@link OtpErlangPid pid} or as a String, but never both. * <li> (sometimes) the sender of the message. Due to some eccentric * characteristics of the Erlang distribution protocol, not all messages have * information about the sending process. In particular, only messages whose tag - * is {@link OtpMsg#regSendTag regSendTag} contain sender information. </lu> + * is {@link OtpMsg#regSendTag regSendTag} contain sender information. </ul> * * <p> * Message are sent using the Erlang external format (see separate diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpOutputStream.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpOutputStream.java index 78f47aa32f..c98790bbd4 100644 --- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpOutputStream.java +++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpOutputStream.java @@ -202,7 +202,7 @@ public class OtpOutputStream extends ByteArrayOutputStream { /** * Write an array of bytes to the stream. * - * @param buf + * @param bytes * the array of bytes to write. * */ @@ -637,7 +637,7 @@ public class OtpOutputStream extends ByteArrayOutputStream { * Write a positive short to the stream. The short is interpreted as a two's * complement unsigned short even if it is negative. * - * @param s + * @param us * the short to use. */ public void write_ushort(final short us) { @@ -974,4 +974,9 @@ public class OtpOutputStream extends ByteArrayOutputStream { write_atom(function); write_long(arity); } + + public void write_map_head(final int arity) { + write1(OtpExternal.mapTag); + write4BE(arity); + } } diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/java_files b/lib/jinterface/java_src/com/ericsson/otp/erlang/java_files index 1390542194..62fa7f990e 100644 --- a/lib/jinterface/java_src/com/ericsson/otp/erlang/java_files +++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/java_files @@ -74,6 +74,7 @@ ERL = \ OtpErlangShort\ OtpErlangString\ OtpErlangTuple \ + OtpErlangMap \ OtpErlangUInt \ OtpErlangUShort |