Examples with XmpMessage org.krupczak.xmp.XmpMessage used on opensource projects

Example 1 with XmpMessage

use of org.krupczak.xmp.XmpMessage in project opennms by OpenNMS.

the class XmpUtil method handleTableQuery.

/**
     * <p>handleTableQuery</p>
     *
     * @param session a {@link org.krupczak.xmp.XmpSession} object.
     * @param mib a {@link java.lang.String} object.
     * @param table a {@link java.lang.String} object.
     * @param object a {@link java.lang.String} object.
     * @param instance a {@link java.lang.String} object.
     * @param instanceRegex a {@link java.util.regex.Pattern} object.
     * @param valueOperator a {@link java.lang.String} object.
     * @param valueOperand a {@link java.lang.String} object.
     * @param minMatches a int.
     * @param maxMatches a int.
     * @param maxMatchesUnbounded a boolean.
     * @param caseSensitive a boolean.
     * @return a boolean.
     * @throws org.opennms.netmgt.protocols.xmp.XmpUtilException if any.
     */
public static boolean handleTableQuery(XmpSession session, String mib, String table, String object, String instance, Pattern instanceRegex, String valueOperator, String valueOperand, int minMatches, int maxMatches, boolean maxMatchesUnbounded, boolean caseSensitive) throws XmpUtilException {
    XmpMessage reply;
    String[] tableInfo = new String[3];
    XmpVar[] queryVars = new XmpVar[1];
    XmpVar[] replyVars;
    int numMatches = 0;
    queryVars[0] = new XmpVar(mib, object, Xmp.SYNTAX_NULLSYNTAX);
    tableInfo[0] = mib;
    tableInfo[1] = object;
    tableInfo[2] = instance;
    reply = session.queryTableVars(tableInfo, 0, queryVars);
    if (reply == null) {
        LOG.warn("handleTableQuery: query for object {} from MIB {} failed, {}", object, mib, Xmp.errorStatusToString(session.getErrorStatus()));
        throw new XmpUtilException("XMP query failed (MIB " + mib + ", object " + object + "): " + Xmp.errorStatusToString(session.getErrorStatus()));
    }
    replyVars = reply.getMIBVars();
    LOG.debug("handleTableQuery: Got reply with {} variables", replyVars.length);
    /* Since we're constrained to a single object, we know that there's
         * exactly one column in the result set and so can use a Java 5
         * for() loop. If there were multiple columns, we'd have to break the
         * flat array into a two-dimensional matrix using a pair of old-style
         * for() loops.
         */
    for (XmpVar thisVar : replyVars) {
        String rowInstance = thisVar.getKey();
        if ((instanceRegex != null) && (!instanceRegex.matcher(rowInstance).matches())) {
            LOG.debug("handleTableQuery: instance {} does not match, skipping this row.", rowInstance);
            // to next var
            continue;
        } else if (instanceRegex == null) {
            LOG.debug("handleTableQuery: instance match not specified, evaluating value of instance {}", rowInstance);
        } else {
            LOG.debug("handleTableQuery: instance {} matches, evaluating value", rowInstance);
        }
        if (valueMeetsCriteria(thisVar, valueOperator, valueOperand, caseSensitive)) {
            numMatches++;
        }
    }
    if (numMatches >= minMatches) {
        LOG.debug("handleTableQuery: Found {} matches, meets specified minimum of {}", numMatches, minMatches);
        if (maxMatchesUnbounded) {
            LOG.debug("handleTableQuery: Maximum matches unbounded, returning true");
            return true;
        } else if (numMatches <= maxMatches) {
            LOG.debug("handleTableQuery: Found {} matches, meets specified maximum of {}, returning true", numMatches, maxMatches);
            return true;
        } else {
            LOG.debug("handleTableQuery: Found {} matches, exceeds specified maximum of {}, returning false", numMatches, maxMatches);
            throw new XmpUtilException("Found too many value matches (" + numMatches + " > " + maxMatches + ") for condition " + mib + "." + object + " " + valueOperator + " " + valueOperand);
        }
    } else {
        LOG.debug("Found only {} matches, too few to meet specified minimum of {}", numMatches, minMatches);
        throw new XmpUtilException("Found too few value matches (" + numMatches + " < " + minMatches + ") for condition " + mib + "." + object + " " + valueOperator + " " + valueOperand);
    }
}

Example 2 with XmpMessage

use of org.krupczak.xmp.XmpMessage in project opennms by OpenNMS.

the class XmpUtil method handleScalarQuery.

/**
     * <p>handleScalarQuery</p>
     *
     * @param session a {@link org.krupczak.xmp.XmpSession} object.
     * @param mib a {@link java.lang.String} object.
     * @param object a {@link java.lang.String} object.
     * @param valueOperator a {@link java.lang.String} object.
     * @param valueOperand a {@link java.lang.String} object.
     * @param caseSensitive a boolean.
     * @return a boolean.
     * @throws org.opennms.netmgt.protocols.xmp.XmpUtilException if any.
     */
public static boolean handleScalarQuery(XmpSession session, String mib, String object, String valueOperator, String valueOperand, boolean caseSensitive) throws XmpUtilException {
    XmpMessage reply;
    XmpVar[] queryVars = new XmpVar[1];
    XmpVar[] replyVars;
    queryVars[0] = new XmpVar(mib, object, Xmp.SYNTAX_NULLSYNTAX);
    reply = session.queryVars(queryVars);
    if (reply == null) {
        LOG.warn("handleScalarQuery: query for object {} from MIB {} failed, {}", object, mib, Xmp.errorStatusToString(session.getErrorStatus()));
        return false;
    } else {
        LOG.debug("handleScalarQuery: query for object {} from MIB {} succeeded.", object, mib);
    }
    replyVars = reply.getMIBVars();
    if (replyVars[0].getMibName().equals(mib) && replyVars[0].getObjName().equals(object)) {
        return valueMeetsCriteria(replyVars[0], valueOperator, valueOperand, caseSensitive);
    } else {
        LOG.error("Observed MIB name ({}) or object name ({}) does not match specified MIB name ({}) or object name ({}), giving up", replyVars[0].getMibName(), replyVars[0].getObjName(), mib, object);
        throw new XmpUtilException("Received unexpected response (MIB: " + replyVars[0].getMibName() + " Object: " + replyVars[0].getObjName());
    }
}

Example 3 with XmpMessage

use of org.krupczak.xmp.XmpMessage in project opennms by OpenNMS.

the class XmpCollector method handleScalarQuery.

/* private methods *********************************** */
// handle scalar query and put in a single collection resource
// devoted to scalars; check sysUptime if its present
// and indicate if data should be persisted 
private boolean handleScalarQuery(String groupName, CollectionAgent agent, CollectionSetBuilder collectionSetBuilder, long oldUptime, XmpSession session, NodeLevelResource nodeLevelResource, XmpVar[] queryVars) {
    XmpMessage reply;
    long newUptime;
    int i;
    XmpVar[] vars;
    //log().debug("sending scalar query");
    reply = session.queryVars(queryVars);
    if (reply == null) {
        LOG.warn("collect: query to {} failed, {}", agent, Xmp.errorStatusToString(session.getErrorStatus()));
        return false;
    }
    // for each variable in reply, store it in collectionSet
    // hack alert: somewhere in some query, we asked for
    // sysUptime; find it save value for later
    // vars[i] should match up with mibObjects[i] !!!
    vars = reply.getMIBVars();
    newUptime = 0;
    for (i = 0; i < vars.length; i++) {
        if (vars[i].getMibName().equals("core") && vars[i].getObjName().equals("sysUpTime")) {
            newUptime = vars[i].getValueLong();
        }
        // put in collectionSet via this attribute group
        final XmpVar xmpVar = vars[i];
        collectionSetBuilder.withAttribute(nodeLevelResource, groupName, xmpVar.getObjName(), xmpVar.getValue(), getType(xmpVar));
    }
    if (newUptime > oldUptime) {
        collectionSetBuilder.disableCounterPersistence(false);
    }
    if (newUptime > 0) {
        // save the agent's sysUpTime in the CollectionAgent
        agent.setSavedSysUpTime(newUptime);
    }
    return true;
}

Example 4 with XmpMessage

use of org.krupczak.xmp.XmpMessage in project opennms by OpenNMS.

the class XmpCollector method handleTableQuery.

/* handleScalarQuery */
// handle a tabular query, save each row in its own
// collection resource
private boolean handleTableQuery(String groupName, String resourceType, CollectionAgent agent, CollectionSetBuilder collectionSetBuilder, String[] tableInfo, XmpSession session, NodeLevelResource nodeLevelResource, XmpVar[] queryVars) throws CollectionException {
    int numColumns, numRows;
    XmpMessage reply;
    int i, j;
    XmpVar[] vars;
    String targetInstance;
    numColumns = queryVars.length;
    // make sure we have an instance or * for all rows; preserve
    // passed in value as targetInstance so we know if we are
    // are going to use targetInstance for saving results or
    // use returned instance for saving values
    // if resourceType is present, we use it as a subDir in
    // our RRD dir
    targetInstance = tableInfo[2];
    if ((tableInfo[2] == null) || (tableInfo[2].length() == 0)) {
        tableInfo[2] = new String("*");
        targetInstance = null;
    }
    LOG.debug("sending table query {},{},{} target: {}", tableInfo[0], tableInfo[1], tableInfo[2], targetInstance);
    reply = session.queryTableVars(tableInfo, 0, queryVars);
    if (reply == null) {
        LOG.warn("collect: query to {} failed, {}", agent, Xmp.errorStatusToString(session.getErrorStatus()));
        return false;
    }
    vars = reply.getMIBVars();
    // we have to go through the reply and find out how 
    // many rows we have
    // for each row: create a CollectionResource of
    //               appropriate type, instance, etc.
    //               create AttributeGroup to put 
    //               the values in 
    numRows = vars.length / numColumns;
    LOG.info("query returned valid table data for {} numRows={} numColumns={}", groupName, numRows, numColumns);
    for (i = 0; i < numRows; i++) {
        String rowInstance;
        // determine instance for this row
        // we use either the rowInstance or targetInstance for
        // naming the instance for saving RRD file; if user
        // wanted all rows (blank instance), then we will use
        // the returned instance; if user specified an instance
        // we use that instance for specifying the RRD file
        // and collection resource
        rowInstance = vars[i * numColumns].getKey();
        // instead of using '*' for the nodeTypeName, use the
        // table name so that the proper rrd file is spec'd
        final String instanceName;
        if (targetInstance != null) {
            instanceName = targetInstance;
        } else {
            instanceName = rowInstance;
        }
        // node type can be "node" for scalars or
        // "if" for network interface resources and
        // "*" for all other resource types
        final String nodeTypeName = tableInfo[1];
        final Resource resource = getResource(nodeLevelResource, nodeTypeName, resourceType, instanceName);
        LOG.debug("queryTable instance={}", rowInstance);
        for (j = 0; j < numColumns; j++) {
            final XmpVar var = vars[i * numColumns + j];
            collectionSetBuilder.withAttribute(resource, groupName, var.getObjName(), var.getValue(), getType(var));
        }
    /* for each column */
    }
    return true;
}

Example 5 with XmpMessage

use of org.krupczak.xmp.XmpMessage in project opennms by OpenNMS.

the class XmpDetector method detect.

@Override
public final DetectResults detect(DetectRequest request) {
    final InetAddress address = request.getAddress();
    XmpSession aSession;
    XmpMessage aReply;
    XmpVar[] vars, replyVars;
    LOG.debug("XmpDetector: isServiceDetected starting to query " + address);
    // try to establish session
    aSession = new XmpSession(sockopts, address, xmpPort, xmpAuthenUser);
    if (aSession.isClosed()) {
        LOG.debug("XmpDetector: null session to " + address);
        return new DetectResultsImpl(false);
    }
    LOG.debug("XmpDetector: isServiceDetected session established with " + address);
    // query for core.sysName, core.sysDescr, 
    // core.sysUpTime, core.xmpdVersion
    vars = new XmpVar[] { new XmpVar("core", "sysName", "", "", Xmp.SYNTAX_NULLSYNTAX), new XmpVar("core", "sysDescr", "", "", Xmp.SYNTAX_NULLSYNTAX), new XmpVar("core", "sysUpTime", "", "", Xmp.SYNTAX_NULLSYNTAX), new XmpVar("core", "xmpdVersion", "", "", Xmp.SYNTAX_NULLSYNTAX) };
    if ((aReply = aSession.queryVars(vars)) == null) {
        LOG.debug("XmpDetector: isServiceDetected no vars from " + address);
        aSession.closeSession();
        return new DetectResultsImpl(false);
    }
    aSession.closeSession();
    // log what we retrieved
    if ((replyVars = aReply.getMIBVars()) == null) {
        LOG.debug("XmpDetector: isServiceDetected no replyVars for " + address);
        return new DetectResultsImpl(false);
    }
    /* if replyVars == null */
    LOG.debug("XmpDetector: isServiceDetected " + address + " reports " + replyVars[0].getValue() + "," + replyVars[1].getValue());
    LOG.debug("XmpDetector: isServiceDetected true for " + address);
    return new DetectResultsImpl(true);
}