| /* |
| * Copyright 2015 gitblit.com. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.gitblit.models; |
| |
| import java.io.Serializable; |
| import java.util.ArrayList; |
| import java.util.Date; |
| import java.util.List; |
| import java.util.NoSuchElementException; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| import com.gitblit.Constants; |
| |
| /** |
| * A FilestoreModel represents a file stored outside a repository but referenced by the repository using a unique objectID |
| * |
| * @author Paul Martin |
| * |
| */ |
| public class FilestoreModel implements Serializable, Comparable<FilestoreModel> { |
| |
| private static final long serialVersionUID = 1L; |
| |
| private static final String metaRegexText = new StringBuilder() |
| .append("version\\shttps://git-lfs.github.com/spec/v1\\s+") |
| .append("oid\\ssha256:(" + Constants.REGEX_SHA256 + ")\\s+") |
| .append("size\\s([0-9]+)") |
| .toString(); |
| |
| private static final Pattern metaRegex = Pattern.compile(metaRegexText); |
| |
| private static final int metaRegexIndexSHA = 1; |
| |
| private static final int metaRegexIndexSize = 2; |
| |
| public final String oid; |
| |
| private Long size; |
| private Status status; |
| |
| //Audit |
| private String stateChangedBy; |
| private Date stateChangedOn; |
| |
| //Access Control |
| private List<String> repositories; |
| |
| public FilestoreModel(String id, long definedSize) { |
| oid = id; |
| size = definedSize; |
| status = Status.ReferenceOnly; |
| } |
| |
| public FilestoreModel(String id, long expectedSize, UserModel user, String repo) { |
| oid = id; |
| size = expectedSize; |
| status = Status.Upload_Pending; |
| stateChangedBy = user.getName(); |
| stateChangedOn = new Date(); |
| repositories = new ArrayList<String>(); |
| repositories.add(repo); |
| } |
| |
| /* |
| * Attempts to create a FilestoreModel from the given meta string |
| * |
| * @return A valid FilestoreModel if successful, otherwise null |
| */ |
| public static FilestoreModel fromMetaString(String meta) { |
| |
| Matcher m = metaRegex.matcher(meta); |
| |
| if (m.find()) { |
| try |
| { |
| final Long size = Long.parseLong(m.group(metaRegexIndexSize)); |
| final String sha = m.group(metaRegexIndexSHA); |
| return new FilestoreModel(sha, size); |
| } catch (Exception e) { |
| //Fail silent - it is not a valid filestore item |
| } |
| } |
| |
| return null; |
| } |
| |
| public synchronized long getSize() { |
| return size; |
| } |
| |
| public synchronized Status getStatus() { |
| return status; |
| } |
| |
| public synchronized String getChangedBy() { |
| return stateChangedBy; |
| } |
| |
| public synchronized Date getChangedOn() { |
| return stateChangedOn; |
| } |
| |
| public synchronized void setStatus(Status status, UserModel user) { |
| this.status = status; |
| stateChangedBy = user.getName(); |
| stateChangedOn = new Date(); |
| } |
| |
| public synchronized void reset(UserModel user, long size) { |
| status = Status.Upload_Pending; |
| stateChangedBy = user.getName(); |
| stateChangedOn = new Date(); |
| this.size = size; |
| } |
| |
| /* |
| * Handles possible race condition with concurrent connections |
| * @return true if action can proceed, false otherwise |
| */ |
| public synchronized boolean actionUpload(UserModel user) { |
| if (status == Status.Upload_Pending) { |
| status = Status.Upload_In_Progress; |
| stateChangedBy = user.getName(); |
| stateChangedOn = new Date(); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| public synchronized boolean isInErrorState() { |
| return (this.status.value < 0); |
| } |
| |
| public synchronized void addRepository(String repo) { |
| if (status != Status.ReferenceOnly) { |
| if (!repositories.contains(repo)) { |
| repositories.add(repo); |
| } |
| } |
| } |
| |
| public synchronized void removeRepository(String repo) { |
| if (status != Status.ReferenceOnly) { |
| repositories.remove(repo); |
| } |
| } |
| |
| public synchronized boolean isInRepositoryList(List<String> repoList) { |
| if (status != Status.ReferenceOnly) { |
| for (String name : repositories) { |
| if (repoList.contains(name)) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| public static enum Status { |
| |
| ReferenceOnly(-42), |
| |
| Deleted(-30), |
| AuthenticationRequired(-20), |
| |
| Error_Unknown(-8), |
| Error_Unexpected_Stream_End(-7), |
| Error_Invalid_Oid(-6), |
| Error_Invalid_Size(-5), |
| Error_Hash_Mismatch(-4), |
| Error_Size_Mismatch(-3), |
| Error_Exceeds_Size_Limit(-2), |
| Error_Unauthorized(-1), |
| //Negative values provide additional information and may be treated as 0 when not required |
| Unavailable(0), |
| Upload_Pending(1), |
| Upload_In_Progress(2), |
| Available(3); |
| |
| final int value; |
| |
| Status(int value) { |
| this.value = value; |
| } |
| |
| public int getValue() { |
| return value; |
| } |
| |
| @Override |
| public String toString() { |
| return name().toLowerCase().replace('_', ' '); |
| } |
| |
| public static Status fromState(int state) { |
| for (Status s : values()) { |
| if (s.getValue() == state) { |
| return s; |
| } |
| } |
| throw new NoSuchElementException(String.valueOf(state)); |
| } |
| } |
| |
| @Override |
| public int compareTo(FilestoreModel o) { |
| return this.oid.compareTo(o.oid); |
| } |
| |
| } |
| |