org.opencms.search.extractors

类 A_CmsTextExtractor

java.lang.Object

org.opencms.search.extractors.A_CmsTextExtractor

所有已实现的接口:

I_CmsTextExtractor

直接已知子类:

CmsExtractorHtml, CmsExtractorMsOfficeOLE2, CmsExtractorMsOfficeOOXML, CmsExtractorOpenOffice, CmsExtractorPdf, CmsExtractorRtf

public abstract class A_CmsTextExtractor
extends java.lang.Object
implements I_CmsTextExtractor

Base utility class that allows extraction of the indexable "plain" text from a given document format.

从以下版本开始:

6.0.0

构造器概要

构造器

构造器和说明
A_CmsTextExtractor()

方法概要

方法

限定符和类型	方法和说明
protected void	combineContentItem(java.lang.String itemValue, java.lang.String itemKey, java.lang.StringBuffer content, java.util.Map<java.lang.String,java.lang.String> contentItems) Combines a meta information item extracted from the document with the main content buffer and also stores the individual information as item in the Map of content items.
I_CmsExtractionResult	extractText(byte[] content) Extracts the text and meta information from the given binary document.
I_CmsExtractionResult	extractText(byte[] content, java.lang.String encoding) Extracts the text and meta information from the given binary document, using the specified content encoding.
I_CmsExtractionResult	extractText(java.io.InputStream in) Extracts the text and meta information from the document on the input stream.
protected CmsExtractionResult	extractText(java.io.InputStream in, org.apache.tika.parser.Parser parser) Parses the given input stream with the provided parser and returns the result as a map of content items.
I_CmsExtractionResult	extractText(java.io.InputStream in, java.lang.String encoding) Extracts the text and meta information from the document on the input stream, using the specified content encoding.
protected java.lang.String	removeControlChars(java.lang.String content) Removes "unwanted" control chars from the given content.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

A_CmsTextExtractor

public A_CmsTextExtractor()

方法详细资料

extractText

public I_CmsExtractionResult extractText(byte[] content)
                                  throws java.lang.Exception

从接口复制的说明: I_CmsTextExtractor

Extracts the text and meta information from the given binary document.

The encoding of the input stream is either not required (the document type may have one common default encoding) or the extractor is able to divine the encoding from the provided binary array automatically.

Delivers is the same result as calling I_CmsTextExtractor.extractText(byte[], String) when String == null.

指定者:

extractText 在接口中 I_CmsTextExtractor

参数:

content - the binary content of the document to extract the text from

返回:

the extracted text

抛出:

java.lang.Exception - if the text extration fails

另请参阅:

I_CmsTextExtractor.extractText(byte[])

extractText

public I_CmsExtractionResult extractText(byte[] content,
                                java.lang.String encoding)
                                  throws java.lang.Exception

从接口复制的说明: I_CmsTextExtractor

Extracts the text and meta information from the given binary document, using the specified content encoding.

The encoding is a hint for the text extractor, if the value given is null then the text extractor should try to figure out the encoding itself.

指定者:

extractText 在接口中 I_CmsTextExtractor

参数:

content - the binary content of the document to extract the text from

encoding - the encoding to use

返回:

the extracted text

抛出:

java.lang.Exception - if the text extration fails

另请参阅:

I_CmsTextExtractor.extractText(byte[], java.lang.String)

extractText

public I_CmsExtractionResult extractText(java.io.InputStream in)
                                  throws java.lang.Exception

从接口复制的说明: I_CmsTextExtractor

Extracts the text and meta information from the document on the input stream.

The encoding of the input stream is either not required (the document type may have one common default encoding) or the extractor is able to divine the encoding from the provided input stream automatically.

Delivers is the same result as calling I_CmsTextExtractor.extractText(InputStream, String) when String == null.

指定者:

extractText 在接口中 I_CmsTextExtractor

参数:

in - the input stream for the document to extract the text from

返回:

the extracted text and meta information

抛出:

java.lang.Exception - if the text extration fails

另请参阅:

I_CmsTextExtractor.extractText(java.io.InputStream)

extractText

public I_CmsExtractionResult extractText(java.io.InputStream in,
                                java.lang.String encoding)
                                  throws java.lang.Exception

从接口复制的说明: I_CmsTextExtractor

Extracts the text and meta information from the document on the input stream, using the specified content encoding.

The encoding is a hint for the text extractor, if the value given is null then the text extractor should try to figure out the encoding itself.

指定者:

extractText 在接口中 I_CmsTextExtractor

参数:

in - the input stream for the document to extract the text from

encoding - the encoding to use

返回:

the extracted text and meta information

抛出:

java.lang.Exception - if the text extration fails

另请参阅:

I_CmsTextExtractor.extractText(java.io.InputStream, java.lang.String)

combineContentItem

protected void combineContentItem(java.lang.String itemValue,
                      java.lang.String itemKey,
                      java.lang.StringBuffer content,
                      java.util.Map<java.lang.String,java.lang.String> contentItems)

Combines a meta information item extracted from the document with the main content buffer and also stores the individual information as item in the Map of content items.

参数:

itemValue - the value of the item to store

itemKey - the key in the Map of content items

content - a buffer where to append the content item

contentItems - the Map of individual content items

extractText

protected CmsExtractionResult extractText(java.io.InputStream in,
                              org.apache.tika.parser.Parser parser)
                                   throws java.lang.Exception

Parses the given input stream with the provided parser and returns the result as a map of content items.

参数:

in - the input stream for the content to parse

parser - the parser to use

返回:

the result of the parsing as a map of content items

抛出:

java.lang.Exception - in case something goes wrong

removeControlChars

protected java.lang.String removeControlChars(java.lang.String content)

Removes "unwanted" control chars from the given content.

参数:

content - the content to remove the unwanted control chars from

返回:

the content with the unwanted control chars removed