Example usage for java.util Hashtable Hashtable

Introduction

In this page you can find the example usage for java.util Hashtable Hashtable.

Prototype

Hashtable(Void dummy) 

Source Link

Document

A constructor chained from Properties keeps Hashtable fields uninitialized since they are not used.

Usage

From source file:SortedResults.java

public static void main(String[] args) throws IOException {

    // Set up environment for creating initial context
    Hashtable<String, Object> env = new Hashtable<String, Object>(11);
    env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
    env.put(Context.PROVIDER_URL, "ldap://localhost:389/ou=People,o=JNDITutorial");

    try {//from  w  w  w.  j a v  a 2 s . c  o m
        // Create initial context with no connection request controls
        LdapContext ctx = new InitialLdapContext(env, null);

        // Create a sort control that sorts based on CN
        String sortKey = "cn";
        ctx.setRequestControls(new Control[] { new SortControl(sortKey, Control.CRITICAL) });

        // Perform a search
        NamingEnumeration results = ctx.search("", "(objectclass=*)", new SearchControls());

        // Iterate over search results
        System.out.println("---->sort by cn");
        while (results != null && results.hasMore()) {
            // Display an entry
            SearchResult entry = (SearchResult) results.next();
            System.out.println(entry.getName());

            // Handle the entry's response controls (if any)
            if (entry instanceof HasControls) {
                // ((HasControls)entry).getControls();
            }
        }
        // Examine the sort control response
        Control[] controls = ctx.getResponseControls();
        if (controls != null) {
            for (int i = 0; i < controls.length; i++) {
                if (controls[i] instanceof SortResponseControl) {
                    SortResponseControl src = (SortResponseControl) controls[i];
                    if (!src.isSorted()) {
                        throw src.getException();
                    }
                } else {
                    // Handle other response controls (if any)
                }
            }
        }

        // Close when no longer needed
        ctx.close();
    } catch (NamingException e) {
        e.printStackTrace();
    }
}

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From source file:FullName.java

public static void main(String[] args) {

    // Set up the environment for creating the initial context
    Hashtable<String, Object> env = new Hashtable<String, Object>(11);
    env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
    env.put(Context.PROVIDER_URL, "ldap://localhost:389/o=JNDITutorial");

    try {//from   w  ww  .j  a v a  2 s .  co m
        // Create initial context
        DirContext ctx = new InitialDirContext(env);

        NamingEnumeration answer = ctx.search("ou=People", null);

        // Print the answer
        printSearchEnumeration(answer);

        // Close the context when we're done
        ctx.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

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From source file:RegUnsol.java

public static void main(String[] args) {

    // Set up environment for creating initial context
    Hashtable<String, Object> env = new Hashtable<String, Object>(11);
    env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
    env.put(Context.PROVIDER_URL, "ldap://localhost:389/o=JNDItutorial");

    try {//  w w w . ja v  a  2  s.c  om
        // Get event context for registering listener
        EventContext ctx = (EventContext) (new InitialContext(env).lookup("ou=People"));

        // Create listener
        NamingListener listener = new UnsolListener();

        // Register listener with context (all targets equivalent)
        ctx.addNamingListener("", EventContext.ONELEVEL_SCOPE, listener);

        // Wait 1 minutes for listener to receive events
        try {
            Thread.sleep(60000);
        } catch (InterruptedException e) {
            System.out.println("sleep interrupted");
        }

        // Not strictly necessary if we're going to close context anyhow
        ctx.removeNamingListener(listener);

        // Close context when we're done
        ctx.close();

    } catch (NamingException e) {
        e.printStackTrace();
    }
}

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From source file:SerObjWithCodebase.java

public static void main(String[] args) {

    if (args.length != 1) {
        System.err.println("usage: java SerObjWithCodebase <codebase URL>");
        System.exit(-1);/*from w  w  w .  j a v a  2  s . c  o m*/
    }

    String codebase = args[0];

    // Set up environment for creating initial context
    Hashtable<String, Object> env = new Hashtable<String, Object>(11);
    env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
    env.put(Context.PROVIDER_URL, "ldap://localhost:389/o=JNDITutorial");

    try {
        // Create the initial context
        DirContext ctx = new InitialDirContext(env);

        // Create object to be bound
        Flower f = new Flower("rose", "pink");

        // Perform bind and specify codebase
        ctx.bind("cn=Flower", f, new BasicAttributes("javaCodebase", codebase));

        // Check that it is bound
        Flower f2 = (Flower) ctx.lookup("cn=Flower");
        System.out.println(f2);

        // Close the context when we're done
        ctx.close();
    } catch (NamingException e) {
        System.out.println("Operation failed: " + e);
    }
}

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From source file:ModAttrs.java

public static void main(String[] args) {

    // Set up the environment for creating the initial context
    Hashtable<String, Object> env = new Hashtable<String, Object>(11);
    env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
    env.put(Context.PROVIDER_URL, "ldap://localhost:389/o=JNDITutorial");

    try {//from  www. j  a v a  2 s.c  o  m
        // Create the initial context
        DirContext ctx = new InitialDirContext(env);
        String name = "cn=Ted Geisel, ou=People";

        // Save original attributes
        Attributes orig = ctx.getAttributes(name, new String[] { "mail", "telephonenumber", "jpegphoto" });

        // Specify the changes to make
        ModificationItem[] mods = new ModificationItem[3];

        // Replace the "mail" attribute with a new value
        mods[0] = new ModificationItem(DirContext.REPLACE_ATTRIBUTE,
                new BasicAttribute("mail", "geisel@wizards.com"));

        // Add additional value to "telephonenumber"
        mods[1] = new ModificationItem(DirContext.ADD_ATTRIBUTE,
                new BasicAttribute("telephonenumber", "+1 555 555 5555"));

        // Remove the "jpegphoto" attribute
        mods[2] = new ModificationItem(DirContext.REMOVE_ATTRIBUTE, new BasicAttribute("jpegphoto"));

        // Perform the requested modifications on the named object
        ctx.modifyAttributes(name, mods);

        // Check attributes
        System.out.println("**** new attributes *****");
        printAttrs(ctx.getAttributes(name));

        // Revert changes
        ctx.modifyAttributes(name, DirContext.REPLACE_ATTRIBUTE, orig);

        // Check that the attributes got restored
        System.out.println("**** reverted to original attributes *****");
        printAttrs(ctx.getAttributes(name));

        // Close the context when we're done
        ctx.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

---

From source file:GetAllAttrs.java

public static void main(String[] args) {

    // Set up the environment for creating the initial context
    Hashtable<String, Object> env = new Hashtable<String, Object>(11);
    env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
    env.put(Context.PROVIDER_URL, "ldap://localhost:389/o=JNDITutorial");

    try {/*from   ww w .  ja  v a 2 s . co m*/
        // Create the initial context
        DirContext ctx = new InitialDirContext(env);

        // Get all the attributes of named object
        Attributes answer = ctx.getAttributes("cn=Ted Geisel, ou=People");

        // Print the answer
        printAttrs(answer);

        // Close the context when we're done
        ctx.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

---

From source file:SearchTimeLimit.java

public static void main(String[] args) {

    // Set up the environment for creating the initial context
    Hashtable<String, Object> env = new Hashtable<String, Object>(11);
    env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
    env.put(Context.PROVIDER_URL, "ldap://localhost:389/o=JNDITutorial");

    try {/*  w  ww  .  j  a v  a2  s  .  c  o m*/
        // Create initial context
        DirContext ctx = new InitialDirContext(env);

        // Set search controls to limit count to 'timeout'
        SearchControls ctls = new SearchControls();
        ctls.setSearchScope(SearchControls.SUBTREE_SCOPE);
        ctls.setTimeLimit(timeout); //

        // Search for objects with those matching attributes
        NamingEnumeration answer = ctx.search("", "(objectclass=*)", ctls);

        // Print the answer
        printSearchEnumeration(answer);

        // Close the context when we're done
        ctx.close();
    } catch (TimeLimitExceededException e) {
        System.out.println("time limit exceeded");
    } catch (Exception e) {
        System.err.println(e);
    }
}

---

From source file:SearchCountLimit.java

public static void main(String[] args) {

    // Set up the environment for creating the initial context
    Hashtable<String, Object> env = new Hashtable<String, Object>(11);
    env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
    env.put(Context.PROVIDER_URL, "ldap://localhost:389/o=JNDITutorial");

    try {/* ww w  . j a v  a2  s.c o m*/
        // Create initial context
        DirContext ctx = new InitialDirContext(env);

        // Set search controls to limit count to 'expected'
        SearchControls ctls = new SearchControls();
        ctls.setCountLimit(expected);

        // Search for objects with those matching attributes
        NamingEnumeration answer = ctx.search("ou=People", "(sn=M*)", ctls);

        // Print the answer
        printSearchEnumeration(answer);

        // Close the context when we're done
        ctx.close();
    } catch (Exception e) {
        System.err.println(e);
    }
}

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From source file:Main.java

public static Hashtable asHashtable(java.util.Map map) {
    return map instanceof Hashtable ? (Hashtable) map : new Hashtable(map);
}

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From source file:Main.java

/**
 * Method getHashtableFromVector.//from www .  j a  v a  2s  .co  m
 * @param vector Vector
 * @return Hashtable
 */
public static Hashtable getHashtableFromVector(Vector vector) {
    Hashtable hashtable = new Hashtable(vector.size());

    for (int i = 0; i < vector.size(); i++) {
        hashtable.put(vector.elementAt(i), vector.elementAt(i));
    }

    return hashtable;
}

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