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| Re: Can Protocol [message #1776506 is a reply to message #1776437] |
Fri, 17 November 2017 06:38   |
 khaleel shaik
Messages: 19
Registered: November 2017 |
Junior Member |
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yes, from Eclipse IDE only i found that.
comp output is here
Quote:
Component[
name = org.eclipse.kura.protocol.can.CanConnectionServiceImpl
activate = activate
deactivate = deactivate
modified =
configuration-policy = optional
factory = null
autoenable = true
immediate = true
implementation = org.eclipse.kura.protocol.can.CanConnectionServiceImpl
state = Unsatisfied
properties = {service.pid=org.eclipse.kura.protocol.can.CanConnectionService}
serviceFactory = false
serviceInterface = [org.eclipse.kura.protocol.can.CanConnectionService]
references = null
located in bundle = org.eclipse.kura.protocol.can_2.0.200.201711171159 [138]
]
Dynamic information :
The component is satisfied
All component references are satisfied
Component configurations :
Configuration properties:
objectClass = String[org.eclipse.kura.protocol.can.CanConnectionService]
service.pid = org.eclipse.kura.protocol.can.CanConnectionService
component.name = org.eclipse.kura.protocol.can.CanConnectionServiceImpl
component.id = 68
Instances:
No instances were created because: Can not activate instance of component org.eclipse.kura.protocol.can.CanConnectionServiceImpl. The actin
and below is the class i have created CanSocket
package org.eclipse.kura.protocol.can;
import java.io.Closeable;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardOpenOption;
import java.nio.file.attribute.FileAttribute;
import java.nio.file.attribute.PosixFilePermission;
import java.nio.file.attribute.PosixFilePermissions;
import java.util.Arrays;
import java.util.Collections;
import java.util.EnumSet;
import java.util.Objects;
import java.util.Set;
public final class CanSocket implements Closeable {
static {
final String LIB_JNI_SOCKETCAN = "jni_socketcan";
try {
System.loadLibrary(LIB_JNI_SOCKETCAN);
} catch (final UnsatisfiedLinkError e) {
try {
loadLibFromJar(LIB_JNI_SOCKETCAN);
} catch (final IOException _e) {
throw new UnsatisfiedLinkError(LIB_JNI_SOCKETCAN);
}
}
}
private static void copyStream(final InputStream in, final OutputStream out) throws IOException {
final int BYTE_BUFFER_SIZE = 0x1000;
final byte[] buffer = new byte[BYTE_BUFFER_SIZE];
for (int len; (len = in.read(buffer)) != -1;) {
out.write(buffer, 0, len);
}
}
private static void loadLibFromJar(final String libName) throws IOException {
Objects.requireNonNull(libName);
final String fileName = "/lib/lib" + libName + ".so";
final FileAttribute<Set<PosixFilePermission>> permissions = PosixFilePermissions
.asFileAttribute(PosixFilePermissions.fromString("rw-------"));
final Path tempSo = Files.createTempFile(CanSocket.class.getName(), ".so", permissions);
try {
try (final InputStream libstream = CanSocket.class.getResourceAsStream(fileName)) {
if (libstream == null) {
throw new FileNotFoundException("jar:*!" + fileName);
}
try (final OutputStream fout = Files.newOutputStream(tempSo, StandardOpenOption.WRITE,
StandardOpenOption.TRUNCATE_EXISTING)) {
copyStream(libstream, fout);
}
}
System.load(tempSo.toString());
} finally {
Files.delete(tempSo);
}
}
public static final CanInterface CAN_ALL_INTERFACES = new CanInterface(0);
private static native int _getCANID_SFF(final int canid);
private static native int _getCANID_EFF(final int canid);
private static native int _getCANID_ERR(final int canid);
private static native boolean _isSetEFFSFF(final int canid);
private static native boolean _isSetRTR(final int canid);
private static native boolean _isSetERR(final int canid);
private static native int _setEFFSFF(final int canid);
private static native int _setRTR(final int canid);
private static native int _setERR(final int canid);
private static native int _clearEFFSFF(final int canid);
private static native int _clearRTR(final int canid);
private static native int _clearERR(final int canid);
private static native int _openSocketRAW() throws IOException;
private static native int _openSocketBCM() throws IOException;
private static native void _close(final int fd) throws IOException;
private static native int _fetchInterfaceMtu(final int fd, final String ifName) throws IOException;
private static native int _fetch_CAN_MTU();
private static native int _fetch_CAN_FD_MTU();
private static native int _discoverInterfaceIndex(final int fd, final String ifName) throws IOException;
private static native String _discoverInterfaceName(final int fd, final int ifIndex) throws IOException;
private static native void _bindToSocket(final int fd, final int ifId) throws IOException;
private static native CanFrame _recvFrame(final int fd) throws IOException;
private static native void _sendFrame(final int fd, final int canif, final int canid, final byte[] data)
throws IOException;
public static final int CAN_MTU = _fetch_CAN_MTU();
public static final int CAN_FD_MTU = _fetch_CAN_FD_MTU();
private static native int _fetch_CAN_RAW_FILTER();
private static native int _fetch_CAN_RAW_ERR_FILTER();
private static native int _fetch_CAN_RAW_LOOPBACK();
private static native int _fetch_CAN_RAW_RECV_OWN_MSGS();
private static native int _fetch_CAN_RAW_FD_FRAMES();
private static final int CAN_RAW_FILTER = _fetch_CAN_RAW_FILTER();
private static final int CAN_RAW_ERR_FILTER = _fetch_CAN_RAW_ERR_FILTER();
private static final int CAN_RAW_LOOPBACK = _fetch_CAN_RAW_LOOPBACK();
private static final int CAN_RAW_RECV_OWN_MSGS = _fetch_CAN_RAW_RECV_OWN_MSGS();
private static final int CAN_RAW_FD_FRAMES = _fetch_CAN_RAW_FD_FRAMES();
private static native void _setsockopt(final int fd, final int op, final int stat) throws IOException;
private static native int _getsockopt(final int fd, final int op) throws IOException;
public final static class CanId implements Cloneable {
private int _canId = 0;
public static enum StatusBits {
ERR,
EFFSFF,
RTR
}
public CanId(final int address) {
_canId = address;
}
public boolean isSetEFFSFF() {
return _isSetEFFSFF(_canId);
}
public boolean isSetRTR() {
return _isSetRTR(_canId);
}
public boolean isSetERR() {
return _isSetERR(_canId);
}
public CanId setEFFSFF() {
_canId = _setEFFSFF(_canId);
return this;
}
public CanId setRTR() {
_canId = _setRTR(_canId);
return this;
}
public CanId setERR() {
_canId = _setERR(_canId);
return this;
}
public CanId clearEFFSFF() {
_canId = _clearEFFSFF(_canId);
return this;
}
public CanId clearRTR() {
_canId = _clearRTR(_canId);
return this;
}
public CanId clearERR() {
_canId = _clearERR(_canId);
return this;
}
public int getCanId_SFF() {
return _getCANID_SFF(_canId);
}
public int getCanId_EFF() {
return _getCANID_EFF(_canId);
}
public int getCanId_ERR() {
return _getCANID_ERR(_canId);
}
@Override
protected Object clone() {
return new CanId(_canId);
}
private Set<StatusBits> _inferStatusBits() {
final EnumSet<StatusBits> bits = EnumSet.noneOf(StatusBits.class);
if (isSetERR()) {
bits.add(StatusBits.ERR);
}
if (isSetEFFSFF()) {
bits.add(StatusBits.EFFSFF);
}
if (isSetRTR()) {
bits.add(StatusBits.RTR);
}
return Collections.unmodifiableSet(bits);
}
@Override
public String toString() {
return "CanId [canId=" + (isSetEFFSFF() ? getCanId_EFF() : getCanId_SFF()) + "flags=" + _inferStatusBits()
+ "]";
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + _canId;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
CanId other = (CanId) obj;
if (_canId != other._canId)
return false;
return true;
}
}
public final static class CanInterface implements Cloneable {
private final int _ifIndex;
private String _ifName;
public CanInterface(final CanSocket socket, final String ifName) throws IOException {
this._ifIndex = _discoverInterfaceIndex(socket._fd, ifName);
this._ifName = ifName;
}
private CanInterface(int ifIndex, String ifName) {
this._ifIndex = ifIndex;
this._ifName = ifName;
}
private CanInterface(int ifIndex) {
this(ifIndex, null);
}
public int getInterfaceIndex() {
return _ifIndex;
}
@Override
public String toString() {
return "CanInterface [_ifIndex=" + _ifIndex + ", _ifName=" + _ifName + "]";
}
public String getIfName() {
return _ifName;
}
public String resolveIfName(final CanSocket socket) {
if (_ifName == null) {
try {
_ifName = _discoverInterfaceName(socket._fd, _ifIndex);
} catch (IOException e) {
/* EMPTY */ }
}
return _ifName;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + _ifIndex;
result = prime * result + ((_ifName == null) ? 0 : _ifName.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
CanInterface other = (CanInterface) obj;
if (_ifIndex != other._ifIndex)
return false;
if (_ifName == null) {
if (other._ifName != null)
return false;
} else if (!_ifName.equals(other._ifName))
return false;
return true;
}
@Override
protected Object clone() {
return new CanInterface(_ifIndex, _ifName);
}
}
public final static class CanFrame implements Cloneable {
private final CanInterface canIf;
private final CanId canId;
private final byte[] data;
public CanFrame(final CanInterface canIf, final CanId canId, byte[] data) {
this.canIf = canIf;
this.canId = canId;
this.data = data;
}
/* this constructor is used in native code */
@SuppressWarnings("unused")
private CanFrame(int canIf, int canid, byte[] data) {
if (data.length > 8) {
throw new IllegalArgumentException();
}
this.canIf = new CanInterface(canIf);
this.canId = new CanId(canid);
this.data = data;
}
public CanId getCanId() {
return canId;
}
public byte[] getData() {
return data;
}
public CanInterface getCanInterfacae() {
return canIf;
}
@Override
public String toString() {
return "CanFrame [canIf=" + canIf + ", canId=" + canId + ", data=" + Arrays.toString(data) + "]";
}
@Override
protected Object clone() {
return new CanFrame(canIf, (CanId) canId.clone(), Arrays.copyOf(data, data.length));
}
}
public static enum Mode {
RAW,
BCM
}
private final int _fd;
private final Mode _mode;
private CanInterface _boundTo;
public CanSocket(Mode mode) throws IOException {
switch (mode) {
case BCM:
_fd = _openSocketBCM();
break;
case RAW:
_fd = _openSocketRAW();
break;
default:
throw new IllegalStateException("unkown mode " + mode);
}
this._mode = mode;
}
public void bind(CanInterface canInterface) throws IOException {
_bindToSocket(_fd, canInterface._ifIndex);
this._boundTo = canInterface;
}
public void send(CanFrame frame) throws IOException {
_sendFrame(_fd, frame.canIf._ifIndex, frame.canId._canId, frame.data);
}
public CanFrame recv() throws IOException {
return _recvFrame(_fd);
}
@Override
public void close() throws IOException {
_close(_fd);
}
public int getMtu(final String canif) throws IOException {
return _fetchInterfaceMtu(_fd, canif);
}
public void setLoopbackMode(final boolean on) throws IOException {
_setsockopt(_fd, CAN_RAW_LOOPBACK, on ? 1 : 0);
}
public boolean getLoopbackMode() throws IOException {
return _getsockopt(_fd, CAN_RAW_LOOPBACK) == 1;
}
public void setRecvOwnMsgsMode(final boolean on) throws IOException {
_setsockopt(_fd, CAN_RAW_RECV_OWN_MSGS, on ? 1 : 0);
}
public boolean getRecvOwnMsgsMode() throws IOException {
return _getsockopt(_fd, CAN_RAW_RECV_OWN_MSGS) == 1;
}
public void setCanFilter(int canId, int canMask) {
}
}
cansocket java file showing a '?' on it.
[Updated on: Fri, 17 November 2017 06:43] Report message to a moderator |
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| Re: Can Protocol [message #1776615 is a reply to message #1776535] |
Sat, 18 November 2017 14:53 |
Matteo Maiero
Messages: 423
Registered: July 2015
Location: Italy |
Senior Member |
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You are right, the lib folder will be there after a successful maven build.
To have a proper setup, I would suggest you to use the Oomph setup that will clone all the needed resources and build for you the project using Maven under the hood.
Best regards,
Matteo
[Updated on: Sat, 18 November 2017 14:55] Report message to a moderator |
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| Re: Can Protocol [message #1776681 is a reply to message #1776669] |
Mon, 20 November 2017 10:46 |
khaleel shaik
Messages: 19
Registered: November 2017 |
Junior Member |
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Hi
I build kura projects with ur command and got lib folder in CAN project. To solve errors i modified the java build path to reference the jar in lib folder.
I deploy " org.eclipse.kura.protocol.can " and " org.eclipse.kura.example.can " bundles in target. protocol can seems to be ok where as example can showing unsatisfied.
ouput of diag
Quote:
java.lang.NoClassDefFoundError: Could not initialize class de.entropia.can.CanSocket
Is any thing needs to be done with org.eclipse.kura.example.can
[Updated on: Mon, 20 November 2017 11:29] Report message to a moderator |
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