Package org.eclipse.jgit.diff
Class ContentSource
- java.lang.Object
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- org.eclipse.jgit.diff.ContentSource
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public abstract class ContentSource extends Object
Supplies the content of a file forDiffFormatter
.A content source is not thread-safe. Sources may contain state, including information about the last ObjectLoader they returned. Callers must be careful to ensure there is no more than one ObjectLoader pending on any source, at any time.
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
ContentSource.Pair
A pair of sources to access the old and new sides of a DiffEntry.
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Constructor Summary
Constructors Constructor Description ContentSource()
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Method Summary
All Methods Static Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description static ContentSource
create(ObjectReader reader)
Construct a content source for an ObjectReader.static ContentSource
create(WorkingTreeIterator iterator)
Construct a content source for a working directory.abstract ObjectLoader
open(String path, ObjectId id)
Open the object.abstract long
size(String path, ObjectId id)
Determine the size of the object.
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Method Detail
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create
public static ContentSource create(ObjectReader reader)
Construct a content source for an ObjectReader.- Parameters:
reader
- the reader to obtain blobs from.- Returns:
- a source wrapping the reader.
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create
public static ContentSource create(WorkingTreeIterator iterator)
Construct a content source for a working directory. If the iterator is aFileTreeIterator
an optimized version is used that doesn't require seeking through a TreeWalk.- Parameters:
iterator
- the iterator to obtain source files through.- Returns:
- a content source wrapping the iterator.
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size
public abstract long size(String path, ObjectId id) throws IOException
Determine the size of the object.- Parameters:
path
- the path of the file, relative to the root of the repository.id
- blob id of the file, if known.- Returns:
- the size in bytes.
- Throws:
IOException
- the file cannot be accessed.
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open
public abstract ObjectLoader open(String path, ObjectId id) throws IOException
Open the object.- Parameters:
path
- the path of the file, relative to the root of the repository.id
- blob id of the file, if known.- Returns:
- a loader that can supply the content of the file. The loader must be used before another loader can be obtained from this same source.
- Throws:
IOException
- the file cannot be accessed.
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