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| <div class="subTitle">net.jini.url.httpmd</div> | |
| <h2 title="Class Handler" class="title">Class Handler</h2> | |
| </div> | |
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| <ul class="inheritance"> | |
| <li><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li> | |
| <li> | |
| <ul class="inheritance"> | |
| <li><a href="http://docs.oracle.com/javase/6/docs/api/java/net/URLStreamHandler.html?is-external=true" title="class or interface in java.net">java.net.URLStreamHandler</a></li> | |
| <li> | |
| <ul class="inheritance"> | |
| <li>net.jini.url.httpmd.Handler</li> | |
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| <pre>public class <span class="typeNameLabel">Handler</span> | |
| extends <a href="http://docs.oracle.com/javase/6/docs/api/java/net/URLStreamHandler.html?is-external=true" title="class or interface in java.net">URLStreamHandler</a></pre> | |
| <div class="block">A stream handler for URLs with the HTTPMD protocol. HTTPMD URLs provide a | |
| way to insure the integrity of data retrieved from an HTTP URL. The HTTPMD | |
| URL includes a message digest for the data to be retrieved from the URL. The | |
| URL input stream insures that the data has the correct message digest when | |
| the end of file for the stream is reached. If the data has the wrong | |
| message digest, a <a href="../../../../net/jini/url/httpmd/WrongMessageDigestException.html" title="class in net.jini.url.httpmd"><code>WrongMessageDigestException</code></a> is thrown. <p> | |
| HTTPMD URLs may be used to guarantee the integrity of a downloaded object's | |
| codebase if used when specifying the URLs for the JAR files containing the | |
| object's classes. Because HTTPMD URLs specify a message digest for a single | |
| item, they should not be used for directories of classes. <p> | |
| HTTPMD URLs have a syntax similar to that of HTTP URLs, but include a | |
| message digest as the last parameter stored in the last segment of the | |
| path. The parameter is introduced by the '<code>;</code>' character, and | |
| includes the name of the message digest algorithm, a '<code>=</code>', the | |
| message digest, and an optional comment introduced by the '<code>,</code>' | |
| character. In addition, a comment by itself may be specified in a relative | |
| HTTPMD URL. Comments are ignored when using <code>equals</code> to compare | |
| HTTPMD URLs. The comment specified in the context URL is ignored when | |
| parsing a relative HTTPMD URL. Adding a comment to an HTTPMD URL is useful | |
| in cases where the URL is required to have a particular suffix, for example | |
| the ".jar" file extension. A comment-only relative HTTPMD URL is useful when | |
| specifying the URL of the containing document from within the contents of | |
| the document, where the message digest cannot be specified because it is not | |
| yet known. <p> | |
| The message digest algorithm is case-insensitive, and may include ASCII | |
| letters and numbers, as well as the following characters: | |
| <pre> | |
| - _ . ~ * ' ( ) : @ & + $ , | |
| </pre> <p> | |
| The value specifies the name of the <a href="http://docs.oracle.com/javase/6/docs/api/java/security/MessageDigest.html?is-external=true" title="class or interface in java.security"><code>MessageDigest</code></a> algorithm to | |
| use. For the URL syntax to be valid, the value must be the name of a | |
| <code>MessageDigest</code> algorithm as determined by calling | |
| <a href="http://docs.oracle.com/javase/6/docs/api/java/security/MessageDigest.html?is-external=true#getInstance-java.lang.String-" title="class or interface in java.security"><code>MessageDigest.getInstance(String)</code></a>. <p> | |
| The message digest is represented as a positive hexadecimal integer, using | |
| digits, and the letters '<code>a</code>' through '<code>f</code>', in either | |
| lowercase or uppercase. <p> | |
| The characters following the '<code>,</code>' comment character may include | |
| ASCII letters and numbers, as well as the following characters: | |
| <pre> | |
| - _ . ~ * ' ( ) : @ & = + $ , | |
| </pre> <p> | |
| Here are some examples of HTTPMD URLs: <p> <ul> | |
| <li> An absolute URL: <br> | |
| <code> | |
| httpmd://www.sun.com/index.html;md5=7be207c7111e459eeea1c9b3d04f1667 | |
| </code> | |
| <li> A relative URL: <br> | |
| <code> | |
| index.html;sha=99f6837808c0a79398bf69d83cfb1b82d20cf0cf,Comment | |
| </code> | |
| <li> A comment-only relative URL: <br> | |
| <code>,.jar</code> | |
| </ul></div> | |
| <dl> | |
| <dt><span class="simpleTagLabel">Since:</span></dt> | |
| <dd>2.0</dd> | |
| <dt><span class="simpleTagLabel">Author:</span></dt> | |
| <dd>Sun Microsystems, Inc.</dd> | |
| <dt><span class="seeLabel">See Also:</span></dt> | |
| <dd><a href="../../../../net/jini/url/httpmd/HttpmdUtil.html" title="class in net.jini.url.httpmd"><code>HttpmdUtil</code></a></dd> | |
| </dl> | |
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| <th class="colOne" scope="col">Constructor and Description</th> | |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../net/jini/url/httpmd/Handler.html#Handler--">Handler</a></span>()</code> | |
| <div class="block">Creates a URL stream handler for HTTPMD URLs.</div> | |
| </td> | |
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| <!-- ========== METHOD SUMMARY =========== --> | |
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| <h3>Method Summary</h3> | |
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| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> | |
| <tr> | |
| <th class="colFirst" scope="col">Modifier and Type</th> | |
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| <td class="colFirst"><code>protected int</code></td> | |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../net/jini/url/httpmd/Handler.html#getDefaultPort--">getDefaultPort</a></span>()</code> | |
| <div class="block">Returns the default port for a URL parsed by this handler, which is | |
| <code>80</code>.</div> | |
| </td> | |
| </tr> | |
| <tr id="i1" class="rowColor"> | |
| <td class="colFirst"><code>protected int</code></td> | |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../net/jini/url/httpmd/Handler.html#hashCode-java.net.URL-">hashCode</a></span>(<a href="http://docs.oracle.com/javase/6/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net">URL</a> u)</code> | |
| <div class="block">Computes the hash code for the specified URL.</div> | |
| </td> | |
| </tr> | |
| <tr id="i2" class="altColor"> | |
| <td class="colFirst"><code>protected boolean</code></td> | |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../net/jini/url/httpmd/Handler.html#hostsEqual-java.net.URL-java.net.URL-">hostsEqual</a></span>(<a href="http://docs.oracle.com/javase/6/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net">URL</a> u1, | |
| <a href="http://docs.oracle.com/javase/6/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net">URL</a> u2)</code> | |
| <div class="block">The default superclass implementation performs dns lookup to determine | |
| if hosts are equal, this allows two URL's with different hashCode's | |
| to be equal, breaking the hashCode equals contract.</div> | |
| </td> | |
| </tr> | |
| <tr id="i3" class="rowColor"> | |
| <td class="colFirst"><code>protected <a href="http://docs.oracle.com/javase/6/docs/api/java/net/URLConnection.html?is-external=true" title="class or interface in java.net">URLConnection</a></code></td> | |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../net/jini/url/httpmd/Handler.html#openConnection-java.net.URL-">openConnection</a></span>(<a href="http://docs.oracle.com/javase/6/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net">URL</a> u)</code> | |
| <div class="block">Creates a HTTP URL connection for an HTTPMD URL.</div> | |
| </td> | |
| </tr> | |
| <tr id="i4" class="altColor"> | |
| <td class="colFirst"><code>protected void</code></td> | |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../net/jini/url/httpmd/Handler.html#parseURL-java.net.URL-java.lang.String-int-int-">parseURL</a></span>(<a href="http://docs.oracle.com/javase/6/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net">URL</a> url, | |
| <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> spec, | |
| int start, | |
| int limit)</code> | |
| <div class="block">Parses the string representation of an HTTPMD URL object.</div> | |
| </td> | |
| </tr> | |
| <tr id="i5" class="rowColor"> | |
| <td class="colFirst"><code>protected boolean</code></td> | |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../net/jini/url/httpmd/Handler.html#sameFile-java.net.URL-java.net.URL-">sameFile</a></span>(<a href="http://docs.oracle.com/javase/6/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net">URL</a> u1, | |
| <a href="http://docs.oracle.com/javase/6/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net">URL</a> u2)</code> | |
| <div class="block">Compares two HTTPMD URLs to see if they refer to the same file.</div> | |
| </td> | |
| </tr> | |
| </table> | |
| <ul class="blockList"> | |
| <li class="blockList"><a name="methods.inherited.from.class.java.net.URLStreamHandler"> | |
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| </a> | |
| <h3>Methods inherited from class java.net.<a href="http://docs.oracle.com/javase/6/docs/api/java/net/URLStreamHandler.html?is-external=true" title="class or interface in java.net">URLStreamHandler</a></h3> | |
| <code><a href="http://docs.oracle.com/javase/6/docs/api/java/net/URLStreamHandler.html?is-external=true#equals-java.net.URL-java.net.URL-" title="class or interface in java.net">equals</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/net/URLStreamHandler.html?is-external=true#getHostAddress-java.net.URL-" title="class or interface in java.net">getHostAddress</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/net/URLStreamHandler.html?is-external=true#openConnection-java.net.URL-java.net.Proxy-" title="class or interface in java.net">openConnection</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/net/URLStreamHandler.html?is-external=true#setURL-java.net.URL-java.lang.String-java.lang.String-int-java.lang.String-java.lang.String-" title="class or interface in java.net">setURL</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/net/URLStreamHandler.html?is-external=true#setURL-java.net.URL-java.lang.String-java.lang.String-int-java.lang.String-java.lang.String-java.lang.String-java.lang.String-java.lang.String-" title="class or interface in java.net">setURL</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/net/URLStreamHandler.html?is-external=true#toExternalForm-java.net.URL-" title="class or interface in java.net">toExternalForm</a></code></li> | |
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| <h3>Methods inherited from class java.lang.<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3> | |
| <code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li> | |
| </ul> | |
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| <div class="details"> | |
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| <li class="blockList"> | |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> | |
| <ul class="blockList"> | |
| <li class="blockList"><a name="constructor.detail"> | |
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| </a> | |
| <h3>Constructor Detail</h3> | |
| <a name="Handler--"> | |
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| </a> | |
| <ul class="blockListLast"> | |
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| <h4>Handler</h4> | |
| <pre>public Handler()</pre> | |
| <div class="block">Creates a URL stream handler for HTTPMD URLs.</div> | |
| </li> | |
| </ul> | |
| </li> | |
| </ul> | |
| <!-- ============ METHOD DETAIL ========== --> | |
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| <h3>Method Detail</h3> | |
| <a name="getDefaultPort--"> | |
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| <li class="blockList"> | |
| <h4>getDefaultPort</h4> | |
| <pre>protected int getDefaultPort()</pre> | |
| <div class="block">Returns the default port for a URL parsed by this handler, which is | |
| <code>80</code>.</div> | |
| <dl> | |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> | |
| <dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/net/URLStreamHandler.html?is-external=true#getDefaultPort--" title="class or interface in java.net">getDefaultPort</a></code> in class <code><a href="http://docs.oracle.com/javase/6/docs/api/java/net/URLStreamHandler.html?is-external=true" title="class or interface in java.net">URLStreamHandler</a></code></dd> | |
| <dt><span class="returnLabel">Returns:</span></dt> | |
| <dd>the default port for a URL parsed by this handler</dd> | |
| </dl> | |
| </li> | |
| </ul> | |
| <a name="openConnection-java.net.URL-"> | |
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| <h4>openConnection</h4> | |
| <pre>protected <a href="http://docs.oracle.com/javase/6/docs/api/java/net/URLConnection.html?is-external=true" title="class or interface in java.net">URLConnection</a> openConnection(<a href="http://docs.oracle.com/javase/6/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net">URL</a> u) | |
| throws <a href="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> | |
| <div class="block">Creates a HTTP URL connection for an HTTPMD URL.</div> | |
| <dl> | |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> | |
| <dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/net/URLStreamHandler.html?is-external=true#openConnection-java.net.URL-" title="class or interface in java.net">openConnection</a></code> in class <code><a href="http://docs.oracle.com/javase/6/docs/api/java/net/URLStreamHandler.html?is-external=true" title="class or interface in java.net">URLStreamHandler</a></code></dd> | |
| <dt><span class="throwsLabel">Throws:</span></dt> | |
| <dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> | |
| </dl> | |
| </li> | |
| </ul> | |
| <a name="parseURL-java.net.URL-java.lang.String-int-int-"> | |
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| <h4>parseURL</h4> | |
| <pre>protected void parseURL(<a href="http://docs.oracle.com/javase/6/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net">URL</a> url, | |
| <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> spec, | |
| int start, | |
| int limit)</pre> | |
| <div class="block">Parses the string representation of an HTTPMD URL object.</div> | |
| <dl> | |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> | |
| <dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/net/URLStreamHandler.html?is-external=true#parseURL-java.net.URL-java.lang.String-int-int-" title="class or interface in java.net">parseURL</a></code> in class <code><a href="http://docs.oracle.com/javase/6/docs/api/java/net/URLStreamHandler.html?is-external=true" title="class or interface in java.net">URLStreamHandler</a></code></dd> | |
| <dt><span class="throwsLabel">Throws:</span></dt> | |
| <dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if the URL is malformed</dd> | |
| </dl> | |
| </li> | |
| </ul> | |
| <a name="hostsEqual-java.net.URL-java.net.URL-"> | |
| <!-- --> | |
| </a> | |
| <ul class="blockList"> | |
| <li class="blockList"> | |
| <h4>hostsEqual</h4> | |
| <pre>protected boolean hostsEqual(<a href="http://docs.oracle.com/javase/6/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net">URL</a> u1, | |
| <a href="http://docs.oracle.com/javase/6/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net">URL</a> u2)</pre> | |
| <div class="block">The default superclass implementation performs dns lookup to determine | |
| if hosts are equal, this allows two URL's with different hashCode's | |
| to be equal, breaking the hashCode equals contract. | |
| It also causes a test failure in the jtreg test suite. | |
| *** Start test: Mon Jan 23 08:11:26 EST 2012 | |
| [jtreg] Test 9: TestEqual: httpmd://foo:88/bar/baz;p1=v1;md5=abcd?q#r, httpmd://alpha:88/bar/baz;p1=v1;md5=abcd?q#r | |
| [jtreg] FAIL: Should be: false | |
| [jtreg] Result: true | |
| URL.implies(URL url) is better suited to perform this function, why | |
| it was originally implemented in equals is unknown.</div> | |
| <dl> | |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> | |
| <dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/net/URLStreamHandler.html?is-external=true#hostsEqual-java.net.URL-java.net.URL-" title="class or interface in java.net">hostsEqual</a></code> in class <code><a href="http://docs.oracle.com/javase/6/docs/api/java/net/URLStreamHandler.html?is-external=true" title="class or interface in java.net">URLStreamHandler</a></code></dd> | |
| </dl> | |
| </li> | |
| </ul> | |
| <a name="sameFile-java.net.URL-java.net.URL-"> | |
| <!-- --> | |
| </a> | |
| <ul class="blockList"> | |
| <li class="blockList"> | |
| <h4>sameFile</h4> | |
| <pre>protected boolean sameFile(<a href="http://docs.oracle.com/javase/6/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net">URL</a> u1, | |
| <a href="http://docs.oracle.com/javase/6/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net">URL</a> u2)</pre> | |
| <div class="block">Compares two HTTPMD URLs to see if they refer to the same file. Performs | |
| case-insensitive comparison of the protocols and of the message digest | |
| parameters (ignoring the comment), calls <code>hostsEqual</code> to | |
| compare the hosts, compares the ports, with <code>-1</code> matching the | |
| default HTTP port (<code>80</code>), and performs case-sensitive | |
| comparison on the remaining portions.</div> | |
| <dl> | |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> | |
| <dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/net/URLStreamHandler.html?is-external=true#sameFile-java.net.URL-java.net.URL-" title="class or interface in java.net">sameFile</a></code> in class <code><a href="http://docs.oracle.com/javase/6/docs/api/java/net/URLStreamHandler.html?is-external=true" title="class or interface in java.net">URLStreamHandler</a></code></dd> | |
| </dl> | |
| </li> | |
| </ul> | |
| <a name="hashCode-java.net.URL-"> | |
| <!-- --> | |
| </a> | |
| <ul class="blockListLast"> | |
| <li class="blockList"> | |
| <h4>hashCode</h4> | |
| <pre>protected int hashCode(<a href="http://docs.oracle.com/javase/6/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net">URL</a> u)</pre> | |
| <div class="block">Computes the hash code for the specified URL. This method ignores the | |
| comment portion of the message digest parameter, and ignores the | |
| case of characters in the message digest and algorithm.</div> | |
| <dl> | |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> | |
| <dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/net/URLStreamHandler.html?is-external=true#hashCode-java.net.URL-" title="class or interface in java.net">hashCode</a></code> in class <code><a href="http://docs.oracle.com/javase/6/docs/api/java/net/URLStreamHandler.html?is-external=true" title="class or interface in java.net">URLStreamHandler</a></code></dd> | |
| </dl> | |
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