Example usage for java.lang Exception Exception

Introduction

In this page you can find the example usage for java.lang Exception Exception.

Prototype

public Exception(Throwable cause)

Source Link

Document

Constructs a new exception with the specified cause and a detail message of (cause==null ?

Usage

From source file:Main.java

public static HashMap<String, Node> getNodes(Node p_node) throws Exception {

    NodeList l_list = null;/*from   w  w  w  .jav  a 2 s  .  c om*/
    Node l_node = null;
    HashMap<String, Node> l_a = null;

    l_list = p_node.getChildNodes();
    if (l_list == null) {
        throw new Exception("XSD001: Unsupported / Invalid Element Type.");
    }
    l_a = new HashMap<String, Node>();
    for (int l_i = 0; l_i < l_list.getLength(); l_i++) {
        l_node = l_list.item(l_i);
        if (l_node.getNodeType() == Element.ELEMENT_NODE) {
            l_a.put(l_node.getNodeName(), l_node);
        }
    }

    return l_a;
}

From source file:Main.java

/**
 * Removes entities file.//from  ww  w .ja va 2s . co  m
 * @param context
 * @param fileName
 * @throws Exception 
 */
public static void removeAllEntities(Context context, String fileName) throws Exception {
    File file = new File(context.getFilesDir(), fileName);
    boolean deleted = file.delete();
    if (!deleted) {
        throw new Exception("Failed to remove file=" + fileName);
    }
}

From source file:Main.java

private static Node getSingleNodeElementByXpath(String xpath) throws Exception {
    NodeList list = getNodeListByXpath(xpath);
    Node node = null;/*from  w w w.jav a  2 s.c  om*/
    if (list.getLength() > 0 && list.item(0).getNodeType() == Node.ELEMENT_NODE) {
        node = list.item(0);
    } else {
        throw new Exception("Xpath Query did not result in a Node element. Check your Xpath expression");
    }
    return node;
}

From source file:Main.java

static public String computeEffectiveServerUrl(String serverUrl, String userName, String password)
        throws Exception {

    if (null == userName && null != password) {
        throw new Exception("Can not specify a password without a user name");
    }/*w w w. j a  va 2s .  c  o  m*/
    if (null != userName && null == password) {
        throw new Exception("Can not specify a user name without a password");
    }
    if (null != userName && null == serverUrl) {
        throw new Exception("Can not specify a user name/password without a server URL");
    }
    if (null == serverUrl) {
        return "";
    }

    String serverUrlWithoutProtocol = null;
    String protocol = null;
    if (serverUrl.startsWith(HTTP_PROTOCOL)) {
        protocol = HTTP_PROTOCOL;
        serverUrlWithoutProtocol = serverUrl.substring(HTTP_PROTOCOL.length());

    } else if (serverUrl.startsWith(HTTPS_PROTOCOL)) {
        protocol = HTTPS_PROTOCOL;
        serverUrlWithoutProtocol = serverUrl.substring(HTTPS_PROTOCOL.length());

    } else {
        throw new Exception("Server URL must specify a protocol (http:// or https://)");
    }

    if (null != userName) {
        serverUrl = protocol + userName + ":" + password + "@" + serverUrlWithoutProtocol;
    }

    return serverUrl;
}

From source file:Main.java

static public String computeEffectiveDatabaseUrl(String serverUrl, String userName, String password,
        String databaseName) throws Exception {

    if (null == databaseName) {
        throw new Exception("Can not specify a db URL without a database name");
    }//from ww  w  .  ja va  2  s  . com

    String effectiveServerUrl = computeEffectiveServerUrl(serverUrl, userName, password);
    if ("".equals(effectiveServerUrl)) {
        return databaseName;
    }

    if (effectiveServerUrl.endsWith("/")) {
        return effectiveServerUrl + databaseName;
    }

    return effectiveServerUrl + "/" + databaseName;
}

From source file:Main.java

/**
 * //from  w  w w.j  a  v a 2 s. c  o m
 * @param bytes
 * @param offset
 * @param length
 * @return
 * @throws UtilityException
 */
public static byte[] sliceBytes(byte[] bytes, int offset, int length) throws Exception {
    if (null == bytes || bytes.length <= 0) {
        return null;
    }
    if (bytes.length < length) {
        throw new Exception("Array index out of bound : " + length);
    }
    if ((offset + length) > bytes.length) {
        throw new Exception("Array index out of bound : " + (offset + length));
    }
    if (offset < 0 || offset > bytes.length - 1) {
        throw new Exception("Array index out of bound : " + (offset + length));
    }

    byte[] newArray = new byte[length];
    for (int i = offset, j = 0; j < length; i++, j++) {
        newArray[j] = bytes[i];
    }
    return newArray;
}

From source file:Main.java

public static String requestPage(String urlPath) throws Exception {
    URL url = new URL(urlPath);
    HttpURLConnection connection = (HttpURLConnection) url.openConnection();

    int responseCode = connection.getResponseCode();
    if (responseCode != 200) {
        throw new Exception("Error loading page: " + responseCode + connection.getResponseMessage());
    }//from  w w w . ja v a 2s  . c  om

    BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
    String inputLine;
    String response = "";

    while ((inputLine = in.readLine()) != null) {
        response += inputLine;
    }

    in.close();
    return response;
}

From source file:Main.java

public static byte[] normalizeArray(byte[] bytes, int expectedLength) throws Exception {
    if (bytes.length > expectedLength) {
        boolean invalid = false;
        for (int i = bytes.length - 1 - expectedLength; i >= 0; i--) {
            if (bytes[i] != 0) {
                invalid = true;// w w w . j  av  a 2  s. c o  m
                break;
            }
        }
        if (invalid)
            throw new Exception("Longer byte array than expected by caller.");
    }

    if (bytes.length == expectedLength)
        return bytes;

    return preAppendHighZeroPadding(bytes, expectedLength - bytes.length);
}

From source file:Main.java

public static void setDefaultFont(Context context, String path, String fontName) {
    try {/*from w w  w  .  ja v  a2 s . co m*/
        defaultTypeFace = Typeface.createFromAsset(context.getAssets(), path + "/" + fontName + ".ttf");
    } catch (RuntimeException e) {
        if (e.getMessage().equals("native typeface cannot be made")) {
            try {
                throw new Exception("the fontName that you use does not exist in the file path!!");
            } catch (Exception e1) {
                e1.printStackTrace();
            }
        }
    }
}

From source file:Main.java

public static boolean deleteDirectory(File directory) throws Exception {
    try {//from   w  ww.j a va  2 s .  c om
        if (directory.exists()) {
            File[] files = directory.listFiles();
            for (int i = 0; i < files.length; i++)
                if (files[i].isDirectory())
                    deleteDirectory(files[i]);
                else
                    files[i].delete();
        }
    } catch (Exception e) {
        throw new Exception(new StringBuilder().append("Error occurred while trying to delete directory ")
                .append(directory).toString());
    }
    return directory.delete();
}