Examples with InternalErrorException cz.metacentrum.perun.core.api.exceptions.InternalErrorException used on opensource projects

Example 81 with InternalErrorException

use of cz.metacentrum.perun.core.api.exceptions.InternalErrorException in project perun by CESNET.

the class ExtSourceXML method extractValueByRegex.

/**
	 * Get regex in format 'regex/replacement' and value to get data from.
	 * Use regex and replacement to get data from value.
	 *
	 * IMPORTANT: Regex must be always in format 'regex/replacement' and must have
	 *						exactly 1 existence of character '/' ex. '[abc](a)[b]/$1'
	 *
	 * @param value some string
	 * @param regex regex in format 'regex/replacement'
	 * @return extracted string from value by regex
	 *
	 * @throws InternalErrorException
	 */
protected String extractValueByRegex(String value, String regex) throws InternalErrorException {
    //trim value to erase newlines and spaces before and after value
    value = value.trim();
    //regex need to be separate to 2 parts (regex) and (replacement) separated by backslash - ex 'regex/replacement'
    Matcher match = pattern.matcher(regex);
    //need to separate regex to regexPart and replacementPart
    String regexPart;
    String replacementPart;
    if (match.find()) {
        int i = match.end();
        if (match.find())
            throw new InternalErrorException("There is more then one separating forward slash in regex without escaping.");
        while (regex.charAt(i) != '/') {
            i--;
            if (i < 0)
                throw new InternalErrorException("Index of forward slash not found.");
        }
        regexPart = regex.substring(0, i);
        replacementPart = regex.substring(i + 1);
    } else {
        throw new InternalErrorException("There is no replacement in regex.");
    }
    //use regex and replacement to get string from value
    value = value.replaceAll(regexPart, replacementPart);
    return value;
}

Example 82 with InternalErrorException

use of cz.metacentrum.perun.core.api.exceptions.InternalErrorException in project perun by CESNET.

the class ExtSourceXML method createTwoWaySSLConnection.

/**
	 * Get https uri of xml document and create two way ssl connection using truststore and keystore.
	 *
	 * @param uri https uri to xml document
	 * @return input stream with xml document
	 *
	 * @throws IOException if there is some input/output error
	 * @throws InternalErrorException if some variables are not correctly filled
	 */
protected InputStream createTwoWaySSLConnection(String uri) throws IOException, InternalErrorException {
    if (uri == null || uri.isEmpty())
        throw new InternalErrorException("Uri must be filled, can't be null or empty.");
    /*//KeyStore data
		String keyStore =  getAttributes().get("keyStore");
		String keyStorePass = getAttributes().get("keyStorePass");
		String keyStoreType = getAttributes().get("keyStoreType");
		if(keyStore == null || keyStorePass == null || keyStoreType == null) {
			throw new InternalErrorException("KeystorePath, KeystorePass and KeystoreType must be filled. Please look into configuration file.");
		}

		//TrustStore data
		String trustStore = getAttributes().get("trustStore");
		String trustStorePass = getAttributes().get("trustStorePass");
		if(trustStore == null || trustStorePass == null) {
			throw new InternalErrorException("TrustStorePath and TrustStorePass must be filled. Please look into configuration file.");
		}

		//set necessary keystore properties - using a p12 file
		System.setProperty("javax.net.ssl.keyStore", keyStore);
		System.setProperty("javax.net.ssl.keyStorePassword", keyStorePass);
		System.setProperty("javax.net.ssl.keyStoreType", keyStoreType);

		//set necessary truststore properties - using JKS
		System.setProperty("javax.net.ssl.trustStore", trustStore);
		System.setProperty("javax.net.ssl.trustStorePassword", trustStorePass);
		// register a https protocol handler  - this may be required for previous JDK versions
		System.setProperty("java.protocol.handler.pkgs","com.sun.net.ssl.internal.www.protocol");*/
    //prepare sslFactory
    SSLSocketFactory factory = (SSLSocketFactory) SSLSocketFactory.getDefault();
    HttpsURLConnection.setDefaultSSLSocketFactory(factory);
    URL myurl = new URL(uri);
    con = (HttpURLConnection) myurl.openConnection();
    //set request header if is required (set in extSource xml)
    String reqHeaderKey = getAttributes().get("requestHeaderKey");
    String reqHeaderValue = getAttributes().get("requestHeaderValue");
    if (reqHeaderKey != null) {
        if (reqHeaderValue == null)
            reqHeaderValue = "";
        con.setRequestProperty(reqHeaderKey, reqHeaderValue);
    }
    int responseCode = con.getResponseCode();
    if (responseCode == 200) {
        InputStream is = con.getInputStream();
        return is;
    }
    throw new InternalErrorException("Wrong response code while opening connection on uri '" + uri + "'. Response code: " + responseCode);
}

Example 83 with InternalErrorException

use of cz.metacentrum.perun.core.api.exceptions.InternalErrorException in project perun by CESNET.

the class ExtSourceXML method getValueFromXpath.

/**
	 * Get xml Node and xpath expression to get value from node by this xpath.
	 *
	 * @param node node for getting value from
	 * @param xpathExpression expression for xpath to looking for value in node
	 * @return string extracted from node by xpath
	 * @throws InternalErrorException
	 */
protected String getValueFromXpath(Node node, String xpathExpression) throws InternalErrorException {
    //Prepare xpath expression
    XPathFactory xPathfactory = XPathFactory.newInstance();
    XPath xpath = xPathfactory.newXPath();
    XPathExpression expr;
    try {
        expr = xpath.compile(xpathExpression);
    } catch (XPathExpressionException ex) {
        throw new InternalErrorException("Error when compiling xpath query.", ex);
    }
    String text;
    try {
        text = (String) expr.evaluate(node, XPathConstants.STRING);
    } catch (XPathExpressionException ex) {
        throw new InternalErrorException("Error when evaluate xpath query on node.", ex);
    }
    return text;
}

Example 84 with InternalErrorException

use of cz.metacentrum.perun.core.api.exceptions.InternalErrorException in project perun by CESNET.

the class ExtSourceXML method xpathParsing.

/**
	 * Get query and maxResults.
	 * Prepare document and xpathExpression by query.
	 * Get all nodes by xpath from document and parse them one by one.
	 *
	 * The way of xml take from "file" or "uri" (configuration file)
	 *
	 * @param query xpath query from config file
	 * @param maxResults never get more than maxResults results (0 mean unlimited)
	 *
	 * @return List of results, where result is Map<String,String> like <name, value>
	 * @throws InternalErrorException
	 */
protected List<Map<String, String>> xpathParsing(String query, int maxResults) throws InternalErrorException {
    //Prepare result list
    List<Map<String, String>> subjects = new ArrayList<Map<String, String>>();
    //Create new document factory builder
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    DocumentBuilder builder;
    try {
        builder = factory.newDocumentBuilder();
    } catch (ParserConfigurationException ex) {
        throw new InternalErrorException("Error when creating newDocumentBuilder.", ex);
    }
    Document doc;
    try {
        if (file != null && !file.isEmpty()) {
            doc = builder.parse(file);
        } else if (uri != null && !uri.isEmpty()) {
            doc = builder.parse(this.createTwoWaySSLConnection(uri));
        } else {
            throw new InternalErrorException("Document can't be parsed, because there is no way (file or uri) to this document in xpathParser.");
        }
    } catch (SAXParseException ex) {
        throw new InternalErrorException("Error when parsing uri by document builder.", ex);
    } catch (SAXException ex) {
        throw new InternalErrorException("Problem with parsing is more complex, not only invalid characters.", ex);
    } catch (IOException ex) {
        throw new InternalErrorException("Error when parsing uri by document builder. Problem with input or output.", ex);
    }
    //Prepare xpath expression
    XPathFactory xPathfactory = XPathFactory.newInstance();
    XPath xpath = xPathfactory.newXPath();
    XPathExpression queryExpr;
    try {
        queryExpr = xpath.compile(query);
    } catch (XPathExpressionException ex) {
        throw new InternalErrorException("Error when compiling xpath query.", ex);
    }
    //Call query on document node and get back nodesets
    NodeList nodeList;
    try {
        nodeList = (NodeList) queryExpr.evaluate(doc, XPathConstants.NODESET);
    } catch (XPathExpressionException ex) {
        throw new InternalErrorException("Error when evaluate xpath query on document.", ex);
    }
    //Test if there is any nodeset in result
    if (nodeList.getLength() == 0) {
        //There is no results, return empty subjects
        return subjects;
    }
    //Iterate through nodes and convert them to Map<String,String>
    for (int i = 0; i < nodeList.getLength(); i++) {
        Node singleNode = nodeList.item(i);
        // remove node from original structure in order to keep access time constant (otherwise is exp.)
        singleNode.getParentNode().removeChild(singleNode);
        Map<String, String> map = convertNodeToMap(singleNode);
        if (map != null)
            subjects.add(map);
        //Reducing results by maxResults
        if (maxResults > 0) {
            if (subjects.size() >= maxResults)
                break;
        }
    }
    this.close();
    return subjects;
}

Example 85 with InternalErrorException

use of cz.metacentrum.perun.core.api.exceptions.InternalErrorException in project perun by CESNET.

the class ExtSourcesManagerImpl method updateExtSource.

@Override
public void updateExtSource(PerunSession sess, ExtSource extSource, Map<String, String> attributes) throws ExtSourceNotExistsException, InternalErrorException {
    ExtSource extSourceDb;
    extSourceDb = this.getExtSourceById(sess, extSource.getId());
    // Check the name
    if (!extSourceDb.getName().equals(extSource.getName())) {
        try {
            jdbc.update("update ext_sources set name=? ,modified_by=?, modified_by_uid=?, modified_at=" + Compatibility.getSysdate() + " where id=?", extSource.getName(), sess.getPerunPrincipal().getActor(), sess.getPerunPrincipal().getUserId(), extSource.getId());
        } catch (RuntimeException e) {
            throw new InternalErrorException(e);
        }
    }
    // Check the type
    if (!extSourceDb.getType().equals(extSource.getType())) {
        try {
            jdbc.update("update ext_sources set type=?, modified_by=?, modified_by_uid=?, modified_at=" + Compatibility.getSysdate() + " where id=?", extSource.getType(), sess.getPerunPrincipal().getActor(), sess.getPerunPrincipal().getUserId(), extSource.getId());
        } catch (RuntimeException e) {
            throw new InternalErrorException(e);
        }
    }
    // Check the attributes
    if (!getAttributes(extSourceDb).equals(attributes)) {
        log.debug("There is a change in attributes for {}", extSource);
        try {
            // Firstly delete all attributes, then store new ones
            jdbc.update("delete from ext_sources_attributes where ext_sources_id=?", extSource.getId());
            for (String attrName : attributes.keySet()) {
                jdbc.update("insert into ext_sources_attributes (ext_sources_id, attr_name, attr_value, created_by, created_at, modified_by, modified_at, created_by_uid, modified_by_uid) " + "values (?,?,?,?," + Compatibility.getSysdate() + ",?," + Compatibility.getSysdate() + ",?,?)", extSource.getId(), attrName, attributes.get(attrName), sess.getPerunPrincipal().getActor(), sess.getPerunPrincipal().getActor(), sess.getPerunPrincipal().getUserId(), sess.getPerunPrincipal().getUserId());
            }
        } catch (RuntimeException e) {
            throw new InternalErrorException(e);
        }
    }
}