Modularize app/tx:

* Move LedgerView declaration
* Move CrossType
* Move Clock declaration
* Move Quality to protocol/
* Move Amounts to protocol/
* Move book to tx/impl
* Remove 0.27 legacy support
* Remove unused AmountType
* Remove core namespace
* Use STAmount

src/ripple/app/tx/impl/TransactionMaster.cpp

@@ -0,0 +1,129 @@
+//------------------------------------------------------------------------------
+/*
+    This file is part of rippled: https://github.com/ripple/rippled
+    Copyright (c) 2012, 2013 Ripple Labs Inc.
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#include <BeastConfig.h>
+#include <ripple/app/tx/TransactionMaster.h>
+#include <ripple/app/main/Application.h>
+#include <ripple/basics/Log.h>
+#include <ripple/basics/seconds_clock.h>
+
+namespace ripple {
+
+TransactionMaster::TransactionMaster ()
+    : mCache ("TransactionCache", 65536, 1800, get_seconds_clock (),
+        deprecatedLogs().journal("TaggedCache"))
+{
+}
+
+bool TransactionMaster::inLedger (uint256 const& hash, std::uint32_t ledger)
+{
+    Transaction::pointer txn = mCache.fetch (hash);
+
+    if (!txn)
+        return false;
+
+    txn->setStatus (COMMITTED, ledger);
+    return true;
+}
+
+Transaction::pointer TransactionMaster::fetch (uint256 const& txnID, bool checkDisk)
+{
+    Transaction::pointer txn = mCache.fetch (txnID);
+
+    if (!checkDisk || txn)
+        return txn;
+
+    txn = Transaction::load (txnID);
+
+    if (!txn)
+        return txn;
+
+    mCache.canonicalize (txnID, txn);
+
+    return txn;
+}
+
+STTx::pointer TransactionMaster::fetch (std::shared_ptr<SHAMapItem> const& item,
+        SHAMapTreeNode::TNType type,
+        bool checkDisk, std::uint32_t uCommitLedger)
+{
+    STTx::pointer  txn;
+    Transaction::pointer            iTx = getApp().getMasterTransaction ().fetch (item->getTag (), false);
+
+    if (!iTx)
+    {
+
+        if (type == SHAMapTreeNode::tnTRANSACTION_NM)
+        {
+            SerialIter sit (item->peekSerializer ());
+            txn = std::make_shared<STTx> (std::ref (sit));
+        }
+        else if (type == SHAMapTreeNode::tnTRANSACTION_MD)
+        {
+            Serializer s;
+            int length;
+            item->peekSerializer ().getVL (s.modData (), 0, length);
+            SerialIter sit (s);
+
+            txn = std::make_shared<STTx> (std::ref (sit));
+        }
+    }
+    else
+    {
+        if (uCommitLedger)
+            iTx->setStatus (COMMITTED, uCommitLedger);
+
+        txn = iTx->getSTransaction ();
+    }
+
+    return txn;
+}
+
+bool TransactionMaster::canonicalize (Transaction::pointer* pTransaction)
+{
+    Transaction::pointer txn (*pTransaction);
+
+    uint256 tid = txn->getID ();
+
+    if (!tid)
+        return false;
+
+    // VFALCO NOTE canonicalize can change the value of txn!
+    if (mCache.canonicalize (tid, txn))
+    {
+        *pTransaction = txn;
+        return true;
+    }
+
+    // VFALCO NOTE I am unsure if this is necessary but better safe than sorry.
+    *pTransaction = txn;
+    return false;
+}
+
+void TransactionMaster::sweep (void)
+{
+    mCache.sweep ();
+}
+
+TaggedCache <uint256, Transaction>& TransactionMaster::getCache()
+{
+    return mCache;
+}
+
+} // ripple