mirror of
https://github.com/DSheirer/sdrtrunk.git
synced 2026-11-12 08:37:25 -05:00
183eb2f7c7
Issue identified with Patch Group management and circular dependencies that can develop because of stale patch groups. Refactored all patch group management into a new PatchGroupManager. Patch groups are now automatically deleted if we don't receive any update messages within 5 seconds. The PatchGroupAlias was also updated to not roll-up attributes from subordinate patched group aliases when those aliases are also patch group aliases -- this eliminates the circular dependency chaining. Added IOverflowListener interface and updated Sources to support overflow listeners. Updated ChannelState to register as an overflow listener so that it can visually depict to the user when the channel enters/exits source overflow state. Added new color pattern for OVERFLOW with yellow text on red.
103 lines
3.1 KiB
Java
103 lines
3.1 KiB
Java
/*******************************************************************************
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* sdrtrunk
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* Copyright (C) 2014-2017 Dennis Sheirer
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
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******************************************************************************/
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package module.decode.p25;
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import java.util.ArrayList;
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import java.util.List;
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public class PatchGroup
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{
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private long mExpireThreshold = 5000; //5 seconds
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private long mLastUpdated;
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private String mPatchGroupID;
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private List<String> mPatchedGroups = new ArrayList<>();
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/**
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* Constructs a patch group with the specified patch group ID
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* @param patchGroupID that identifies this patch group
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*/
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public PatchGroup(String patchGroupID)
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{
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mPatchGroupID = patchGroupID;
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mLastUpdated = System.currentTimeMillis();
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}
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/**
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* Patch group ID for this patch group
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*/
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public String getPatchGroupID()
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{
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return mPatchGroupID;
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}
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/**
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* Adds the patched group to this patch group. Duplicate patched groups are ignored.
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*
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* Note: the patch group ID will not be added as a patched group, to avoid circular dependencies.
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*
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* @return true if the patched group was added to this patch group
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*/
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public boolean addPatchedGroup(String patchedGroup)
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{
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if(patchedGroup != null && !patchedGroup.equals(mPatchGroupID) && !mPatchedGroups.contains(patchedGroup))
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{
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mPatchedGroups.add(patchedGroup);
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return true;
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}
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return false;
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}
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/**
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* Patched talkgroups that are part of this patch group.
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*/
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public List<String> getPatchedGroups()
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{
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return mPatchedGroups;
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}
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/**
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* Updates the timestamp for this patch group.
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*/
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public void updateTimestamp()
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{
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mLastUpdated = System.currentTimeMillis();
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}
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/**
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* Indicates if this patch group is expired, meaning that it hasn't been updated in the past (expire
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* threshold) seconds.
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*/
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public boolean isExpired()
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{
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return System.currentTimeMillis() - mLastUpdated > mExpireThreshold;
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}
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/**
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* Sets the patch group expiration threshold (default = 5000 ms). A patch group is considered expired if
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* no new updates have been received within the past (expire threshold) milliseconds
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*
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* @param expireThreshold in milliseconds
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*/
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public void setExpireThreshold(long expireThreshold)
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{
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mExpireThreshold = expireThreshold;
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}
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}
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