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Description
Packages | |
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estraier.pure |
This is a package implementing the node API of Hyper Estraier. This is a pure java package though it has not uncertified yet. So, it works on Linux, Mac OS X, Windows, and so on. It does not depend on the core library of Hyper Estraier. Applications are implemented as clients of node servers running on local or remote machines. This package requires JRE 1.4.2 or later versions.
Though Hyper Estraier itself is released under the terms of the GNU LGPL, this package is released under the terms of a BSD-style license.
Get the package of the latest version of Hyper Estraier.
Enter the sub directory `javapure' in the extracted package then perform installation.
cd javapure ./configure make su make install
`estraier.pure.*' should be imported in each source file of application programs.
The following is the simplest implementation of a gatherer.
import estraier.pure.*; public class Example001 { public static void main(String[] args){ // create and configure the node connecton object Node node = new Node(); node.set_url("http://localhost:1978/node/test1"); node.set_auth("admin", "admin"); // create a document object Document doc = new Document(); // add attributes to the document object doc.add_attr("@uri", "http://estraier.gov/example.txt"); doc.add_attr("@title", "Over the Rainbow"); // add the body text to the document object doc.add_text("Somewhere over the rainbow. Way up high."); doc.add_text("There's a land that I heard of once in a lullaby."); // register the document object to the node if(!node.put_doc(doc)) System.err.println("error: " + node.status()); } }
The following is the simplest implementation of a searcher.
import estraier.pure.*; public class Example002 { public static void main(String[] args){ // create the node connecton object Node node = new Node(); node.set_url("http://localhost:1978/node/test1"); // create a search condition object Condition cond = new Condition(); // set the search phrase to the search condition object cond.set_phrase("rainbow AND lullaby"); // get the result of search NodeResult nres = node.search(cond, 0); if(nres != null){ // for each document in the result for(int i = 0; i < nres.doc_num(); i++){ // get a result document object ResultDocument rdoc = nres.get_doc(i); // display attributes System.out.println("URI: " + rdoc.attr("@uri")); System.out.println("Title: " + rdoc.attr("@title")); // display the snippet text System.out.print(rdoc.snippet()); } } else { System.err.println("error: " + node.status()); } } }
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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